參數(shù)資料
型號: PIC14000-04
廠商: Microchip Technology Inc.
英文描述: 28-Pin Programmable Mixed Signal Controller
中文描述: 28引腳可編程混合信號控制器
文件頁數(shù): 54/152頁
文件大?。?/td> 953K
代理商: PIC14000-04
PIC14000
DS40122B-page 54
Preliminary
1996 Microchip Technology Inc.
FIGURE 7-17: OPERATION OF THE I
2
C IN IDLE_MODE, RCV_MODE OR XMIT_MODE
I
DLE_MODE (7-bit):
if (Addr_match)
{
Set interrupt;
if (R/W = 1)
{
}
Send ACK = 0;
set XMIT_MODE;
else if (R/W = 0) set RCV_MODE;
}
RCV_MODE:
if ((I2CBUF=Full) OR (I
2
COV = 1))
{
Set I
2
COV;
Do not acknowledge;
}
else
{
transfer I
2
CSR
I
2
CBUF;
send ACK = 0;
}
Receive 8-bits in I
2
CSR;
Set interrupt;
XMIT_MODE:
While ((I2CBUF = Empty) AND (CKP=0)) Hold SCL Low;
Send byte;
Set interrupt;
if (ACK Received = 1)
{
End of transmission;
Go back to IDLE_MODE;
}
else if (ACK Received = 0) Go back to XMIT_MODE;
IDLE_MODE (10-Bit):
If (High_byte_addr_match AND (R/W = 0))
{
PRIOR_ADDR_MATCH = FALSE;
Set interrupt;
if ((I2CBUF = Full) OR ((I2COV = 1))
{
Set I2COV;
Do not acknowledge;
}
{
else
Set UA = 1;
Send ACK = 0;
While (I2CADD not updated) Hold SCL low;
Clear UA = 0;
Receive Low_addr_byte;
Set interrupt;
Set UA = 1;
If (Low_byte_addr_match)
{
PRIOR_ADDR_MATCH = TRUE;
Send ACK = 0;
while (I2CADD not updated) Hold SCL low;
Clear UA = 0;
Set RCV_MODE;
}
}
}
else if (High_byte_addr_match AND (R/W = 1)
{
if (PRIOR_ADDR_MATCH)
{
send ACK = 0;
set XMIT_MODE;
}
else PRIOR_ADDR_MATCH = FALSE;
}
相關(guān)PDF資料
PDF描述
PIC14000 CTV 22C 22#22D SKT RECP
PIC16C621A EPROM-Based 8-Bit CMOS Microcontroller
PIC16C62X EPROM-Based 8-Bit CMOS Microcontroller
PIC16C620A EPROM-Based 8-Bit CMOS Microcontroller
PIC16C622A EPROM-Based 8-Bit CMOS Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC14000-04/SO 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC14000-04/SP 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC14000-04/SP 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 14000 SDIL28
PIC14000-04/SS 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC14000-04I/SO 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT