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參數(shù)資料
| 型號： | PCA9665 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Fm+ parallel bus to I2C-bus controller |
| 中文描述： | 調(diào)頻并行總線I2C總線控制器 |
| 文件頁數(shù)： | 52/91頁 |
| 文件大小： | 372K |
| 代理商： | PCA9665 |
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PCA9665_2
NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 02 — 7 December 2006
52 of 91
NXP Semiconductors
PCA9665
Fm+ parallel bus to I
2
C-bus controller
In Buffered Receiver mode, when an interrupt is generated and SI is set to 1 (after a
STOP command or a buffer full condition), the buffer pointer is reset and points at the first
received data byte. Reading the I2CCOUNT register then indicates the number of bytes
that have been sent or received (BC[6:0]). Reading of the data from I2CDAT buffer can
then be initiated starting with the first received byte.
Table 42.
Operation performed
Master Transmitter Buffered mode
After START condition
After Slave Address Sent + ACK bit received and interrupt received
After Slave Address Sent + NACK bit received
After Slave Address Sent + ‘n’ data bytes sent, ACK bit received, both
address and ‘n’ data
After Slave Address Sent + ‘n’ data bytes sent, last byte
After STOP
After losing arbitration in Slave Address + W and addressed as slave
After losing arbitration in slave address + W and not addressed as slave 0
After losing arbitration in data at n
th
byte
I2CCOUNT register value based on the performed operation
I2CCOUNT register value
don’t care
1
1
n + 1
n + 1
don’t care
0
n (if there was no interrupt after slave address was
sent)
n
1 (if there was an interrupt after slave address
was sent)
Master Receiver Buffered mode
After START condition
After Slave Address Sent + ACK bit received
After Slave Address Sent + NACK bit received
After Slave Address Sent + ‘n’ data bytes received, ACK bit received for
address and ACK bit returned for ‘n’ data bytes
After Slave Address Sent + ‘n’ data bytes received, NACK bit returned
for the last byte
After STOP
After losing arbitration in Slave Address + R bit and addressed as slave 0
After losing arbitration in slave address + R and not addressed as slave 0
After losing arbitration in ACK of n
th
byte
Slave Receiver Buffered mode (regular slave mode and General Call response
After Slave Address + W and ACK bit returned for slave address (both in
regular mode and when PCA9665 loses arbitration and is addressed as
slave)
After receiving ‘n’ bytes, ACK bit returned for the ‘n’ bytes
After receiving ‘n’ bytes, NACK bit returned for the last byte
Slave Transmitter Buffered mode
After Slave Address + R and ACK bit returned for slave address (both in
regular mode and when PCA9665 loses arbitration and is addressed as
slave)
After ‘n’ data bytes transmitted and ACK bit received for ‘n’ bytes
After ‘n’ data bytes transmitted and NACK bit received for the last byte
don't care
don't care (because no interrupt received here)
1
n
n
don't care
n
0
n
n
0
n
n
相關PDF資料 |
PDF描述 |
|---|---|
| PCA9665N | Fm+ parallel bus to I2C-bus controller |
| PCA9671 | Remote 16-bit I/O expander for Fm+ I2C-bus with reset |
| PCA9671DB | Remote 16-bit I/O expander for Fm+ I2C-bus with reset |
| PCA9671DK | Remote 16-bit I/O expander for Fm+ I2C-bus with reset |
| PCA9673 | Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9665APW,118 | 功能描述:I2C 接口集成電路 Fm+ parallel bus I2C bus controller RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCA9665BS,118 | 功能描述:I2C 接口集成電路 FM+ I2C BUS CONTRLLR RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCA9665BS-T | 功能描述:I2C 接口集成電路 FM+ I2C BUS CONTRLLR RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCA9665D | 功能描述:I2C 接口集成電路 FM+ I2C BUS CONTRLLR RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCA9665D,112 | 功能描述:I2C 接口集成電路 FM+ I2C BUS CONTRLLR RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
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