S5PV210微处理器功能部件及应用PPT.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,1,第,8,章,S5PV210,微处理器功能部件及应用,本章主要内容（续）,5,、,S5PV210,产品编码,；,6,、,S5PV210 GPIO,；,7,、,S5PV210 UART,；,2,8.5,S5PV210,产品编码（资料,90,页）,8.5.1,寄存器映射,寄存器,地址,R/W,说明,复位值,PRO_ID,0 xE000_0000,R,产品信息,0 x43110020,8.5.2 PRO_ID,寄存器,PRO_ID,位,说明,初始状态,产品,ID,31:12,分配给,S5PV210,是,“,0 x43110,”,0 x43110,保留,11:8,保留,-,版本号,7:4,修正号,0 x2,设备,ID,3:0,000,：,V210,；,001,：,C110,010,：,C110,；其它保留,0 x0,3,8.6 S5PV210 GPIO,（,92,页）,1,、,GPIO,概述,S5PV210,包括,237,个多功能的输入,/,输出端口引脚和,142,个存储器端口引脚，以下是,34,个普通端口组和,2,个存储器端口组：,（,1,）,GPA0,：,8,位,I/O,端口,有流控的,2 x UART;,（,2,）,GPA1,：,4,位,I/O,端口,没有流控的,2 x UART,或有流控的,1 x UART,；,4,（,3,）,GPB,：,8,位,I/O,端口,2 x SPI,；,（,4,）,GPC0,：,5,位,I/O,端口,I2S,，,PCM,，,AC97,；,（,5,）,GPC1,：,5,位,I/O,端口,I2S,SPDIF,LCD_FRM,；,（,6,）,GPD0,：,4,位,I/O,端口,PWM,；,（,7,）,GPD1,：,6,位,I/O,端口,3 x I2C,PWM,IEM,；,5,（,8,）,GPE0,1,：,13,位,I/O,端口,CameraI/F,；,（,9,）,GPF0,1,2,3,：,30,位,I/O,端口,LCD I/F,；,（,10,）,GPG0,1,2,3,：,28,位,I/O,端口,4xMMC,通道（通道,0,和,2,支持,4,位和,8,位模式，但通道,1,和,3,仅支持,4,位模式）；,（,11,）,GPH0,1,2,3,：,32,位,I/O,端口,键盘、外部唤醒（高达,32,位）。,GPH,组在带电部分；,6,（,12,）,GPI,：低功耗的,I,2,C,、,PCM,（,I/O,端口没有使用），通过,AUDIO_SS,PDN,寄存器来配置值,PDN,掉电控制；,（,13,）,GPJ0,1,2,3,4,：,35,位,I/O,端口,Modem IF,CAMIF,CFCON,KEYPAD,SROM ADDR22:16,；,（,14,）,MP0_1,2,3,：,20,位,I/O,端口,EBI(SROM,NF,OneNAND),的控制信号；,7,（,15,）,MP0_4,5,6,7,：,32,位,I/O,存储器端口,EBI,（,EBI,的更多配置信息）；,（,16,）,MP1_08,：,71,位,DRAM1,端口（,I/O,端口没有使用）；,（,17,）,MP2_08,：,71,位,DRAM2,端口（,I/O,端口没有使用）；,（,18,）,ETC0,ETC1,ETC2,ETC4,：,28,位,I/O ETC,端口,JTAG,Operating Mode,RESET,CLOCK(ETC3,保留,),。,8,2,、,GPIO,特性,1,）控制,146,个,GPIO,中断；,（,2,）控制,32,个外部中断；,（,3,）,237,个多功能,I/O,端口；,（,4,）除,GPH0,GPH1,GPH2,and GPH3,外，其它,GPIO,在休眠模式控制引脚状态。,9,3,、,S5PV210 I/O,类型,I/O,类型,I/O,组,说明,A,GPA0,GPA1,GPC0,GPC1,GPD0,GPD1,GPE0,GPE1,GPF0,GPF1,GPF2,GPF3,GPH0,GPH1,GPH2,GPH3,GPI,GPJ0,GPJ1,GPJ2,GPJ3,GPJ4,Normal I/O,(3.3V I/O),B,GPB,GPG0,GPG1,GPG2,GPG3,MP0,Fast I/O,(3.3V I/O),C,MP1,MP2,DRAM I/O,(1.8V I/O),配置,I/O,被分成类型,A,和,B,。,10,4,、,I/O,说明（,98,页）,（,1,）,GPIO,块图,GPIO,由两部分组成，依次是带电部分和不带电部分。带电部分在休眠模式下也提供电源，因此在休眠模式下寄存器的值被保存；不带电部分则不同。,11,12,（,2,）引脚摘要,I/O,Control Type,Function Description,A1,Control at power down mode is possible,power down mode is released by S/W(ENABLE_GPIO bit of OTHERS register at PMU),A2,Control at power down mode is possible,power down mode is released by S/W(ENABLE_UART_IO bit of OTHERS register at PMU),A3,Control at power down mode is possible,power down mode is released by S/W(ENABLE_MMC_IO bit of OTHERS register at PMU),A4,Control at power down mode is possible,power down mode is released by H/W,automatically,A5,Control at power down mode is possible,power down mode is released by H/W,(ENABLE_CF_IO bit of OTHERS register at PMU),B1,No Retention(Alive IO),B2,No Retention(Analog IO),13,（,3,）引脚复用说明（,100,页）引脚名,GPIO,功能,0,功能,1,功能,2,功能,3,缺省,复位,休眠,状态,PUD,I/O,XuRXD0,GPA00,UART_0_RXD,GPI,PD,I(L),A1,XuTXD0,GPA01,UART_0_TXD,GPI,PD,I(L),A1,XuCTSn0,GPA02,UART_0_CTSn,GPI,PD,I(L),A1,XuRTSn0,GPA03,UART_0_RTSn,GPI,PD,I(L),A1,详情参考数据手册,100,页。,14,5,、寄存器说明（,115,页）,（,1,）寄存器映射,每端口组有两种类型的控制寄存器，一种工作在,正常模式,，另外一种工作在,掉电模式,(STOP,，,DEEP-STOP,，,SLEEP mode,),。,正常寄存器（如,GPA0CON,，,GPA0DAT,，,GPA0PUD,，,GPA0DRV,）对应正常模式；,掉电寄存器（如,GPA0CONPDN,，,GPA0PUDPDN,）对应掉电模式,。,15,如果,S5PV210,进入掉电模式，所有配置和下拉控制被设置为掉电模式。,寄存器,地址,R/W,说明,复位值,GPA0CON,0 xE020_0000,R/W,端口组,GPA0,配置寄存器,0 x00000000,GPA0DAT,0 xE020_0004,R/W,端口组,GPA0,数据寄存器,0 x00,GPA0PUD,0 xE020_0008,R/W,端口组,GPA0,上,/,下拉寄存器,0 x5555,GPA0DRV,0 xE020_000C,R/W,端口组,GPA0,驱动能力控制寄存器,0 x0000,GPA0CONPDN,0 xE020_0010,R/W,端口组,GPA0,掉电模式配置寄存器,0 x00,GPA0PUDPDN,0 xE020_0014,R/W,端口组,GPA0,掉电上,/,下拉寄存器,0 x00,16,寄存器,地址,R/W,说明,复位值,GPA1CON,0 xE020_0020,R/W,端口组,GPA1,配置寄存器,0 x00000000,GPA1DAT,0 xE020_0024,R/W,端口组,GPA1,数据寄存器,0 x00,GPA1PUD,0 xE020_0028,R/W,端口组,GPA1,上,/,下拉寄存器,0 x5555,GPA1DRV,0 xE020_002C,R/W,端口组,GPA1,驱动能力控制寄存器,0 x0000,GPA1CONPDN,0 xE020_0030,R/W,端口组,GPA1,掉电模式配置寄存器,0 x00,GPA1PUDPDN,0 xE020_0034,R/W,端口组,GPA1,掉电上,/,下拉寄存器,0 x00,17,寄存器,地址,R/W,说明,复位值,GPBCON,0 xE020_0040,R/W,端口组,GPB,配置寄存器,0 x00000000,GPBDAT,0 xE020_0044,R/W,端口组,GPB,数据寄存器,0 x00,GPBPUD,0 xE020_0048,R/W,端口组,GPB,上,/,下拉寄存器,0 x5555,GPBDRV,0 xE020_004C,R/W,端口组,GPB,驱动能力控制寄存器,0 x0000,GPBCONPDN,0 xE020_0050,R/W,端口组,GPB,掉电模式配置寄存器,0 x00,GPBPUDPDN,0 xE020_0054,R/W,端口组,GPB,掉电上,/,下拉寄存器,0 x00,18,寄存器,地址,R/W,说明,复位值,GPC0CON,0 xE020_0060,R/W,端口组,GPC0,配置寄存器,0 x00000000,GPC0DAT,0 xE020_0064,R/W,端口组,GPC0,数据寄存器,0 x00,GPC0PUD,0 xE020_0068,R/W,端口组,GPC0,上,/,下拉寄存器,0 x0155,GPC0DRV,0 xE020_006C,R/W,端口组,GPC0,驱动能力控制寄存器,0 x0000,GPC0CONPDN,0 xE020_0070,R/W,端口组,GPC0,掉电模式配置寄存器,0 x00,GPC0PUDPDN,0 xE020_0074,R/W,端口组,GPC0,掉电上,/,下拉寄存器,0 x00,19,寄存器,地址,R/W,说明,复位值,GPC1CON,0 xE020_0080,R/W,端口组,GPC1,配置寄存器,0 x00000000,GPC1DAT,0 xE020_0084,R/W,端口组,GPC1,数据寄存器,0 x00,GPC1PUD,0 xE020_0088,R/W,端口组,GPC1,上,/,下拉寄存器,0 x0155,GPC1DRV,0 xE020_008C,R/W,端口组,GPC1,驱动能力控制寄存器,0 x0000,GPC1CONPDN,0 xE020_00790,R/W,端口组,GPC1,掉电模式配置寄存器,0 x00,GPC1PUDPDN,0 xE020_0094,R/W,端口组,GPC1,掉电上,/,下拉寄存器,0 x00,20,寄存器,地址,R/W,说明,复位值,GPD0CON,0 xE020_00A0,R/W,端口组,GPD0,配置寄存器,0 x00000000,GPD0DAT,0 xE020_00A4,R/W,端口组,GPD0,数据寄存器,0 x00,GPD0PUD,0 xE020_00A8,R/W,端口组,GPD0,上,/,下拉寄存器,0 x0055,GPD0DRV,0 xE020_00AC,R/W,端口组,GPD0,驱动能力控制寄存器,0 x0000,GPD0CONPDN,0 xE020_00B0,R/W,端口组,GPD0,掉电模式配置寄存器,0 x00,GPD0PUDPDN,0 xE020_00B4,R/W,端口组,GPD0,掉电上,/,下拉寄存器,0 x00,21,寄存器,地址,R/W,说明,复位值,GPD1CON,0 xE020_00C0,R/W,端口组,GPD1,配置寄存器,0 x00000000,GPD1DAT,0 xE020_00C4,R/W,端口组,GPD1,数据寄存器,0 x00,GPD1PUD,0 xE020_00C8,R/W,端口组,GPD1,上,/,下拉寄存器,0 x0555,GPD1DRV,0 xE020_00CC,R/W,端口组,GPD1,驱动能力控制寄存器,0 x0000,GPD1CONPDN,0 xE020_00C0,R/W,端口组,GPD1,掉电模式配置寄存器,0 x00,GPD1PUDPDN,0 xE020_00C4,R/W,端口组,GPD1,掉电上,/,下拉寄存器,0 x00,22,寄存器,地址,R/W,说明,复位值,GPE0CON,0 xE020_00E0,R/W,端口组,GPE0,配置寄存器,0 x00000000,GPE0DAT,0 xE020_00E4,R/W,端口组,GPE0,数据寄存器,0 x00,GPE0PUD,0 xE020_00E8,R/W,端口组,GPE0,上,/,下拉寄存器,0 x5555,GPE0DRV,0 xE020_00EC,R/W,端口组,GPE0,驱动能力控制寄存器,0 x0000,GPE0CONPDN,0 xE020_00F0,R/W,端口组,GPE0,掉电模式配置寄存器,0 x00,GPE0PUDPDN,0 xE020_00F4,R/W,端口组,GPE0,掉电上,/,下拉寄存器,0 x00,23,寄存器,地址,R/W,说明,复位值,GPE1CON,0 xE020_0100,R/W,端口组,GPE1,配置寄存器,0 x00000000,GPE1DAT,0 xE020_0104,R/W,端口组,GPE1,数据寄存器,0 x00,GPE1PUD,0 xE020_0108,R/W,端口组,GPE1,上,/,下拉寄存器,0 x0155,GPE1DRV,0 xE020_010C,R/W,端口组,GPE1,驱动能力控制寄存器,0 x0000,GPE1CONPDN,0 xE020_0110,R/W,端口组,GPE1,掉电模式配置寄存器,0 x00,GPE1PUDPDN,0 xE020_0114,R/W,端口组,GPE1,掉电上,/,下拉寄存器,0 x00,太多，后续略。,24,（,2,）端口组,GPA0,控制寄存器,有,6,个控制寄存器，依次为：,GPA0CON,，,GPA0DAT,，,GPA0PUD,，,GPA0DRV,，,GPA0CONPDN,，,GPA0PUDPDN,（后两个是掉电模式用）,。,GPA0CON,R/W,Address=0 xE020_0000,GPA0CON位,说明,初始状态,GPA0CON7,31:28,0000=Input,0001=Output,0010=UART_1_RTSn,0011 1110=Reserved,1111=GPA0_INT7,0000,25,GPA0CON,位,说明,初始状态,GPA0CON6,27:24,0000=Input,0001=Output,0010=UART_1_CTSn,0011 1110=Reserved,1111=GPA0_INT6,0000,GPA0CON5,23:20,0000=Input,0001=Output,0010=UART_1_TXD,0011 1110=Reserved,1111=GPA0_INT5,0000,GPA0CON4,19:16,0000=Input,0001=Output,0010=UART_1_RXD,0011 1110=Reserved,1111=GPA0_INT4,0000,26,GPA0CON,位,说明,初始状态,GPA0CON3,15:12,0000=Input,0001=Output,0010=UART_0_RTSn,0011 1110=Reserved,1111=GPA0_INT3,0000,GPA0CON2,11:8,0000=Input,0001=Output,0010=UART_0_CTSn,0011 1110=Reserved,1111=GPA0_INT2,0000,GPA0CON1,7:4,0000=Input,0001=Output,0010=UART_0_TXD,0011 1110=Reserved,1111=GPA0_INT1,0000,27,GPA0CON,位,说明,初始状态,GPA0CON0,3:0,0000=Input,0001=Output,0010=UART_0_RXD,0011 1110=Reserved,1111=GPA0_INT0,0000,GPA0DAT,R/W,Address=0 xE020_0004,GPA0DAT,位,说明,初始状态,GPA0DAT7:0,7:0,当该端口配置成输入口时，对应位是引脚状态；当该端口配置成输出口时，引脚状态与位状态一致；当端口配置成多功能时，输入数据不定。,0X00,28,GPA0PUD,R/W,Address=0 xE020_0008,GPA0PUD,位,说明,初始状态,GPA0PUDn,2n+1:2n,n=07,00=Pull-up/down disabled,01=Pull-down enabled,10=Pull-up enabled,11=Reserved,0 x5555,GPA0DRV,R/W,Address=0 xE020_000C,GPA0DRV,位,说明,初始状态,GPA0DRVn,2n+1:2n,n=07,00=1x,10=2x,01=3x,11=4x,0 x0000,29,GPA0CONPDN,R/W,Address=0 xE020_0010,GPA0CONPDN,位,说明,初始状态,GPA0n,2n+1:2n,n=07,00=Output 0,01=Output 1,10=Input,11=Previous state,0 x00,GPA0PUDPDN,R/W,Address=0 xE020_0014,GPA0PUDPDN,位,说明,初始状态,GPA0n,2n+1:2n,n=07,00=Pull-up/down disabled,01=Pull-down enabled,10=Pull-up enabled,11=Reserved,0 x00,其它端口组寄存器太多，这里略。,30,（,3,）,GPIO,中断控制寄存器（,215,页）,GPIO,中断,由,22,组,构成，依次为：,GPA0,GPA1,GPB,GPC0,GPC1,GPD0,GPD1,GPE0,GPE1,GPF0,GPF1,GPF2,GPF3,GPG0,GPG1,GPG2,GPG3,GPJ0,GPJ1,GPJ2,GPJ3,、,GPJ4,。,S5PV210,采用两种过滤检测中断：,延迟过滤,和,数字过滤,。,31,延迟过滤采用延迟单元。,如果时钟不可用，在上电区域选择延迟过滤。,延迟过滤在中断发生,35,纳秒后使能检测中断。,数字过滤意味着所有的中断是基于时钟的。数字过滤可以使用在时钟支持的区域。,32,当选择数字过滤时设置过滤宽度。,数字过滤在过滤宽度中每个时钟检测中断。,过滤宽度在上电部分是,6,位，在掉电部分是,7,位。,当使用中断功能时，为了使用中断可以使用延时过滤，也可以使用数字过滤。,33,当过滤被屏蔽时，系统从连续的中断中检测所有中断是很可能的，但有些中断会丢失。,为可靠检测中断，最好设置过滤使能。,GPIO,中断不能用在唤醒资源中，对于唤醒中断源可以使用外中断。,下表为,GPIO,中断控制寄存器。,34,寄存器,地址,读写,说明,复位值,GPA0_INT_CON,0 xE020_0700,R/W,GPA0_INT,配置寄存器,0 x0,GPA1_INT_CON,0 xE020_0704,R/W,GPA1_INT,配置寄存器,0 x0,GPB_INT_CON,0 xE020_0708,R/W,GPB_INT,配置寄存器,0 x0,GPC0_INT_CON,0 xE020_070C,R/W,GPC0_INT,配置寄存器,0 x0,GPC1_INT_CON,0 xE020_0710,R/W,GPC1_INT,配置寄存器,0 x0,还有很多，略。,35,GPA0_INT_CON,，,R/W,，,Address=0 xE020_0700,（,222,页）,GPA0_INT_CON,保留,位,说明,初始状态,保留,31,保留,0,GPA0_INT_CON7,30:28,设置,GPA0_INT7,信号的方法：,000=Low level,001=High level,010=Falling edge triggered,011=Rising edge triggered,100=Both edge triggered,101 111=Reserved,000,保留,27,保留,0,GPA0_INT_CON6,26:24,设置,GPA0_INT6,信号的方法：,000=Low level,001=High level,010=Falling edge triggered,011=Rising edge triggered,100=Both edge triggered,101 111=Reserved,000,36,GPA0_INT_CON,保留,位,说明,初始状态,保留,23,保留,0,GPA0_INT_CON5,22:20,设置,GPA0_INT5,信号的方法：,000=Low level,001=High level,010=Falling edge triggered,011=Rising edge triggered,100=Both edge triggered,101 111=Reserved,000,保留,19,保留,0,GPA0_INT_CON4,18:16,设置,GPA0_INT4,信号的方法：,000=Low level,001=High level,010=Falling edge triggered,011=Rising edge triggered,100=Both edge triggered,101 111=Reserved,000,37,GPA0_INT_CON,保留,位,说明,初始状态,保留,15,保留,0,GPA0_INT_CON3,14:12,设置,GPA0_INT3,信号的方法：,000=Low level,001=High level,010=Falling edge triggered,011=Rising edge triggered,100=Both edge triggered,101 111=Reserved,000,保留,11,保留,0,GPA0_INT_CON2,10:8,设置,GPA0_INT2,信号的方法：,000=Low level,001=High level,010=Falling edge triggered,011=Rising edge triggered,100=Both edge triggered,101 111=Reserved,000,38,GPA0_INT_CON,保留,位,说明,初始状态,保留,7,保留,0,GPA0_INT_CON1,6:4,设置,GPA0_INT1,信号的方法：,000=Low level,001=High level,010=Falling edge triggered,011=Rising edge triggered,100=Both edge triggered,101 111=Reserved,000,保留,3,保留,0,GPA0_INT_CON0,2:0,设置,GPA0_INT0,信号的方法：,000=Low level,001=High level,010=Falling edge triggered,011=Rising edge triggered,100=Both edge triggered,101 111=Reserved,000,其它寄存器类似，略。,39,GPA0_INT_FLTCON0,R/W,Address=0 xE020_0800,（,257,页）,GPA0_INT_FLTCON0,位,说明,初始状态,FLTEN13,31,GPA0_INT3,的过滤使能：,0=Disables,1=Enables,0,FLTWIDTH13,30:24,GPA0_INT3,的过滤宽度，当,FLTSEL1=1,时该值有效。,0,FLTEN12,23,GPA0_INT2,的过滤使能：,0=Disables,1=Enables,0,FLTWIDTH12,22:16,GPA0_INT2,的过滤宽度，当,FLTSEL1=1,时该值有效。,0,FLTEN11,15,GPA0_INT1,的过滤使能：,0=Disables,1=Enables,0,FLTWIDTH11,14:8,GPA0_INT1,的过滤宽度，当,FLTSEL1=1,时该值有效。,0,40,GPA0_INT_FLTCON0,位,说明,初始状态,FLTEN10,7,GPA0_INT0,的过滤使能：,0=Disables,1=Enables,0,FLTWIDTH10,6:0,GPA0_INT0,的过滤宽度，当,FLTSEL1=1,时该值有效。,0,其它寄存器类似，略。,41,GPA0_INT_MASK,R/W,Address=0 xE020_0900,（,288,页）,GPA0_INT_MASK,位,说明,初始状态,保留,31:8,保留,0,GPA0_INT_MASK7,7,0=Enables Interrupt,，,1=Masked,1,GPA0_INT_MASK6,6,0=Enables Interrupt,，,1=Masked,1,GPA0_INT_MASK5,5,0=Enables Interrupt,，,1=Masked,1,GPA0_INT_MASK4,4,0=Enables Interrupt,，,1=Masked,1,GPA0_INT_MASK3,3,0=Enables Interrupt,，,1=Masked,1,GPA0_INT_MASK2,20=Enables Interrupt,，,1=Masked,1,GPA0_INT_MASK1,1,0=Enables Interrupt,，,1=Masked,1,GPA0_INT_MASK0,0,0=Enables Interrupt,，,1=Masked,1,其它寄存器类似，略。,42,GPA0_INT_PEND,R/W,Address=0 xE020_0A00,（,300,页）,GPA0_INT_PEND,位,说明,初始状态,保留,31:8,保留,0,GPA0_INT_PEND7,7,0=Not occur,，,1=Occur interrupt,0,GPA0_INT_PEND6,60=Not occur,，,1=Occur interrupt,0,GPA0_INT_PEND5,5,0=Not occur,，,1=Occur interrupt,0,GPA0_INT_PEND4,4,0=Not occur,，,1=Occur interrupt,0,GPA0_INT_PEND3,3,0=Not occur,，,1=Occur interrupt,0,GPA0_INT_PEND2,2,0=Not occur,，,1=Occur interrupt,0,GPA0_INT_PEND1,1,0=Not occur,，,1=Occur interrupt,0,GPA0_INT_PEND0,0,0=Not occur,，,1=Occur interrupt,0,其它寄存器类似，略。,43,GPIO_INT_GRPPRI,R/W,Address=0 xE020_0B00,（,312,页）,GPIO_INT_GRPPRI,位,说明,初始状态,保留,31:1,保留,0,GPIO_INT_GRPPRI,0,GPIO,中断组优先级循环使能，,0,不循环（固定）,0,GPIO_INT_PRIORITY,R/W,Address=0 xE020_0B04,GPIO_INT_PRIORITY,位,说明,初始状态,保留,31:22,保留,0,GPJ4_INT_PRI,21,GPJ4_INT优先级循环使能，,0,不循环（固定）,0,GPJ3_INT_PRI,20,GPJ3_INT,优先级循环使能，,0,不循环（固定）,0,.,GPA0_INT_PRI,0,GPA0_INT,优先级循环使能，,0,不循环（固定）,0,44,GPIO_INT_SERVICE,R/W,Address=0 xE020_0B08,（,314,页）,GPIO_INT_SERVICE,位,说明,初始状态,保留,31:8,保留,0,SVC_Group_Num,7:3,GPIO,中断服务组号（,GPA0_INTGPJ4_INT,）,无中断：,00000=0X0,GPA0_INT:00001=0X01,GPA1_INT:00010=0X2,GPB_INT:00011=0X3,.,GPJ14_INT:10110=0X16,0,SVC_Num,2,：,0,被服务的中断号,0,45,GPIO_INT_SERVICE_PEND,R/W,Address=0 xE020_0B0C,（,315,页）,GPIO_INT_SERVICE_PEND,位,说明,初始状态,保留,31:8,保留,0,SVC_PEND_Num,7:0,GPIO Interrupt Service Interrupt number,(0=Not occur,1=Occur interrupt),(0 7bit),0bit:0000_0001=0 x1,1bit:0000_0010=0 x2,2bit:0000_0100=0 x4,3bit:0000_1000=0 x8,4bit:0001_0000=0 x10,5bit:0010_0000=0 x20,6bit:0100_0000=0 x40,7bit:1000_0000=0 x80,0,46,GPIO_INT_GRPFIXPRI,R/W,Address=0 xE020_0B10,（,316,页）,GPIO_INT_GRPFIXPRI,位,说明,初始状态,保留,31:5,保留,0,Highest_GRP_NUM,4:0,当固定组优先级模式时,(GPA0_INT GPJ4_INT),，最高优先级的组号：,Non_INT:00000=0 x0,，,GPA0_INT:00001=0 x1,GPA1_INT:00010=0 x2,，,GPB_INT:00011=0 x3,GPC0_INT:00100=0 x4,，,GPC1_INT:00101=0 x5,GPD0_INT:00110=0 x6,，,GPD1_INT:00111=0 x7,GPE0_INT:01000=0 x8,，,GPE1_INT:01001=0 x9,GPF0_INT:01010=0 xA,，,GPF1_INT:01011=0 xB,GPF2_INT:01100=0 xC,，,GPF3_INT:01101=0 xD,GPG0_INT:01110=0 xE,，,GPG1_INT:01111=0 xF,GPG2_INT:10000=0 x10,，,GPG3_INT:10001=0 x11,GPJ0_INT:10010=0 x12,，,GPJ1_INT:10011=0 x13,GPJ2_INT:10100=0 x14,，,GPJ3_INT:10101=0 x15,GPJ4_INT:10110=0 x16,。,假如,GPC0_INT,是高优先级,下一个优先组是,GPC1_INT,不是,GPA0_INT.,0,47,GPA0_INT_FIXPRI,R/W,Address=0 xE020_0B14,（,316,页）,GPA0_INT_FIXPRI,位,说明,初始状态,保留,31:3,保留,0,Highest_EINT_NUM,2:0,当固定优先级模式时,07,时，在,GPA0_INT,中最高优先级的中断号。假如,3,是最高优先级，下一个优先级是,4,，不是,0,0,其它寄存器类似，略。,48,48,（,1,）蜂鸣器应用,在应用中，为了产生声音报警，常常使用蜂鸣器。下图为,S5PV210,中使用蜂鸣器的电路接线图。,6,、,GPIO,应用实例,49,49,蜂鸣器电路图,50,50,涉及寄存器及操作,端口控制寄存器,GPA0CON,（,0 xE020_0000),。,端口数据寄存器,GPA0DAT,（,0 xE020_0004),。,GPA0CON,（,0 xE020_0000)=OXXXXXXXX,1,。,GPA0DAT,（,0 xE020_0004)=0XXXXXXXXX,0,0XXXXXXXXX,1,。,51,51,用,ARM,的汇编语言实现的程序,AREA Larm,CODE,READONLY,；只读的代码段,ENTRY,；程序入口点,start LDR R0,=0XE0200000,LDR R1,=0XFFFFFFF1,STR R1,R0,LDR R0,=0XE0200004,LOOP,LDR R1,=0XFFFFFFF0,STR R1,R0,BL delay,LDR R1,=0XFFFFFFF1,STR R1,R0,BL delay,B LOOP,52,52,用,ARM,的汇编语言实现的程序（续）,delay LDR R2,=0X0000FFFF,delay1,MOV R3,R3,SUBS R2,R2,#1,BNE delay1,MOV PC,LR,END,；段结束,若使用,B LR,，编译器提示不能使用这种方式。,53,53,用,C,语言实现的程序,#define GPA0CON(*(volatile unsigned int *)0 xE0200000),#define GPA0DAT(*(volatile unsigned int *)0 xE0200004),/*,延时程序*,/,void DelayNS(int dly),int i;,for(;dly0;dly-),for(i=0;i0),0 x0000,116,(13)UART,通道分频曹寄存器（,879,页）,UART,块有,4,个,UART,通道波特率分频寄存器，它们依次为：,UDIVSLOT0,、,UDIVSLOT,1,、,UDIVSLOT,2,、,UDIVSLOT,3,。,UDIVSLOT n,Bit,Description,Initial State,Reserved,31:16,Reserved,0,UDIVSLOTn,15:0,Select the slot where clock generator divide clock source,0 x0000,117,UART,波特率配置（,879,页）,在,UART,块中有,4,个波特率分频器。他们依次为：,UBRDIV0,，,UBRDIV1,，,UBRDIV2,，,UBRDIV3,。,存储在波特率分频寄存器（,UBRDIVn,）和分频曹寄存器（,UDIVSLOTn,）的值按下面方式决定串行,Tx/Rx,时钟率（波特率）。,118,DIV_VAL=UBRDIVn+(num of 1s in UDIVSLOTn)/16,DIV_VAL=(PCLK/(bps x 16)1,或者,DIV_VAL=(SCLK_UART/(bps x