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): 63/91頁
文件大?。?/td> 372K
代理商: PCA9665
PCA9665_2
NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 02 — 7 December 2006
63 of 91
NXP Semiconductors
PCA9665
Fm+ parallel bus to I
2
C-bus controller
8.13 I
2
C-bus timing diagrams, Buffered mode
The diagrams (
Figure 23
through
Figure 26
) illustrate typical timing diagrams for the
PCA9665 in master/slave functions.
Master PCA9665 writes data to slave transmitter.
(1) 7-bit address + R/W = 0 byte and number of bytes sent = value programmed in I2CCOUNT register (BC[6:0]
68).
Fig 23. Bus timing diagram; Buffered Master Transmitter mode
n byte
(1)
ACK
SCL
SDA
INT
START
condition
7-bit address
(1)
R/W = 0
from slave receiver
first byte
(1)
ACK
ACK
STOP
condition
002aab267
interrupt
Master PCA9665 reads data from slave transmitter.
(1) Number of bytes received = value programmed in I2CCOUNT register (BC[6:0]
68).
Fig 24. Bus timing diagram; Buffered Master Receiver mode
n byte
(1)
ACK
SCL
SDA
INT
START
condition
7-bit address
R/W = 1
from slave
first byte
(1)
ACK
no ACK
STOP
condition
002aab268
from master receiver
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