參數(shù)資料
型號: PCA9665N
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Fm+ parallel bus to I2C-bus controller
中文描述: I2C BUS CONTROLLER, PDIP20
封裝: 0.300 INCH, PLASTIC, MS-001, SOT146-1, DIP-20
文件頁數(shù): 64/91頁
文件大小: 372K
代理商: PCA9665N
PCA9665_2
NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 02 — 7 December 2006
64 of 91
NXP Semiconductors
PCA9665
Fm+ parallel bus to I
2
C-bus controller
External master receiver reads data from PCA9665.
(1) As defined in I2CADR register.
(2) Number of bytes received = value programmed in I2CCOUNT register (BC[6:0]
68).
Fig 25. Bus timing diagram; Buffered Slave Transmitter mode
n byte
(2)
ACK
SCL
SDA
INT
START
condition
7-bit address
(1)
R/W = 1
from slave PCA9665
first byte
(2)
ACK
no ACK
STOP
condition
002aab269
from master receiver
interrupt
interrupt
Slave PCA9665 is written to by external master transmitter.
(1) As defined in I2CADR register.
(2) Number of bytes received = value programmed in I2CCOUNT register (BC[6:0]
68).
Fig 26. Bus timing diagram; Buffered Slave Receiver mode
n byte
(2)
ACK
SCL
SDA
INT
START
condition
7-bit address
(1)
R/W = 0
from slave PCA9665
first byte
(2)
ACK
ACK
STOP
condition
002aab270
interrupt
interrupt
(after STOP)
interrupt
Fig 27. Bus timing diagram; Software Reset Call
ACK
SCL
SDA
INT
START
condition
7-bit SWRST
Call address
R/W = 0
from slave PCA9665
first byte = 0xA5
ACK
STOP
condition
002aab488
interrupt
(after STOP)
interrupt
second byte = 0x5A
ACK
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