Octal SMBus and I2C registered interface
參數(shù)資料
型號: CS61577-IL1Z
廠商: Cirrus Logic Inc
文件頁數(shù): 12/13頁
文件大?。?/td> 0K
描述: IC LINE INTERFACE T1/E1 28PLCC
標(biāo)準(zhǔn)包裝: 40
應(yīng)用: 網(wǎng)絡(luò)
接口: 串行
電源電壓: 4.75 V ~ 5.25 V
封裝/外殼: 28-PLCC
供應(yīng)商設(shè)備封裝: 28-PLCC
包裝: 管件
安裝類型: 表面貼裝
其它名稱: 598-1711
Philips Semiconductors
Product data
PCA9556
Octal SMBus and I2C registered interface
2002 Mar 28
8
1
A2
A1 A0
0
1
A2
A1
A0
0
S0
A
COMMAND BYTE
acknowledge
from slave
R/W
acknowledge
from slave
A
P
NA
acknowledge
from slave
acknowledge
from master
S
DATA
R/W
first byte
at this moment master-transmitter
becomes master-receiver and
slave-receiver becomes
slave-transmitter
last byte
su01052
no acknowledge
from master
1
slave address
data from register
slave address
Figure 9. READ from register via Read byte protocol
00
1
A2
A1
A0
READ FROM
PORT
DATA INTO
PORT
SDA
S1
A
DATA 1
DATA 4
slave address
data from port
start condition
R/W
acknowledge
from slave
acknowledge
from master
stop
condition
tps
DATA 4
DATA 2
P
DATA 3
tph
SW00799
no acknowledge
from master
NA
NOTES:
1. This figure assumes the command byte has previously been programmed with 00h.
2. Transfer of data can be stopped at any moment by a stop condition. When this occurs, data present at the last acknowledge phase is valid
(output mode). Input data is lost.
Figure 10. READ input port register via Receive byte protocol
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