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參數(shù)資料
| 型號(hào)： | uPSD3212C |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(帶8032微控制器內(nèi)核和16Kbit SRAM的FLASH可編程系統(tǒng)器件) |
| 中文描述： | 閃存可編程系統(tǒng)設(shè)備與8032微控制器內(nèi)核和16Kbit的SRAM（帶8032微控制器內(nèi)核和16Kbit SRAM的的閃存可編程系統(tǒng)器件） |
| 文件頁數(shù)： | 76/151頁 |
| 文件大?。?/td> | 1194K |
| 代理商： | UPSD3212C |
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uPSD3212C, uPSD3212CV
76/151
Serial Status Register (S2STA)
S2STA is a “Read-only” register. The contents of
this register may be used as a vector to a service
routine. This optimized the response time of the
software and consequently that of the I
2
C bus. The
status codes for all possible modes of the I
2
C bus
interface are given Table 54.
This flag is set, and an interrupt is generated, after
any of the following events occur:
1.
Own slave address has been received during
AA = 1: ack_int
2.
The general call address has been received
while GC(S2ADR.0) = 1 and AA = 1:
3.
A data byte has been received or transmitted
in Master Mode (even if arbitration is lost):
ack_int
A data byte has been received or transmitted
as selected slave: ack_int
A stop condition is received as selected slave
receiver or transmitter: stop_int
Data Shift Register (S2DAT)
S2DAT contains the serial data to be transmitted
or data which has just been received. The MSB
(Bit 7) is transmitted or received first; that is, data
shifted from right to left.
4.
5.
Table 53. Serial Status Register (S2STA)
Table 54. Description of the S2STA Bits
Note: 1. Interrupt Flag Bit (INTR, S2STA Bit 5) is cleared by Hardware as reading S2STA register.
2. I
C Interrupt Flag (INTR) can occur in below case.
Table 55. Data Shift Register (S2DAT)
7
6
5
4
3
2
1
0
GC
STOP
INTR
TX_MODE
BBUSY
BLOST
/ACK_REP
SLV
Bit
Symbol
Function
7
GC
General Call Flag
6
STOP
Stop Flag. This bit is set when a STOP condition is received
5
INTR
(1,2)
Interrupt Flag. This bit is set when an I2C Interrupt condition is requested
4
TX_MODE
Transmission Mode Flag.
This bit is set when the I2C is a transmitter; otherwise this bit is reset
3
BBUSY
Bus Busy Flag.
This bit is set when the bus is being used by another master; otherwise, this bit is reset
2
BLOST
Bus Lost Flag.
This bit is set when the master loses the bus contention; otherwise this bit is reset
1
/ACK_REP
Acknowledge Response Flag.
This bit is set when the receiver transmits the not acknowledge signal
This bit is reset when the receiver transmits the acknowledge signal
0
SLV
Slave Mode Flag.
This bit is set when the I2C plays role in the Slave Mode; otherwise this bit is reset
7
6
5
4
3
2
1
0
S2DAT7
S2DAT6
S2DAT5
S2DAT4
S2DAT3
S2DAT2
S2DAT1
S2DAT0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPSD3212C-24T1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM |
| UPSD3212C-24T6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic |
| UPSD3212C-24U1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM |
| UPSD3212C-24U6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic |
| UPSD3212C-40T1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM |
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