参数资料
型号: L64781
厂商: LSI CORP
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封装: PLASTIC, QFP-100
文件页数: 107/164页
文件大小: 2003K
代理商: L64781
Microprocessor Interface
3-7
Figure 3.6
Multiread from Slave with Repeat-Start Condition
3.1.1.3 Single-Write Cycle
The steps in a single-write cycle, Figure 3.7, are:
Step 1.
The master cycle starts the cycle with the start condition.
Step 2.
The master transmits the 7-bit slave address.
Step 3.
The master transmits the eighth bit (R/W) cleared to 0, to
indicate a write cycle.
Step 4.
The addressed slave acknowledges the reception of the slave
address by deasserting SDA (LOW) in the ACK cycle.
Step 5.
The master sends the 8-bit address to indicate the address of
the register.
Step 6.
The addressed slave acknowledges the reception of the
address by deasserting SDA (LOW) in ACK cycle.
Step 7.
The master sends the 8-bit data.
Step 8.
The addressed slave acknowledges the reception of the data
by deasserting SDA (LOW) in ACK cycle.
Step 9.
The master terminates the cycle by issuing a stop condition.
8-Bit Address
7-Bit Slave Address
First 8-Bit Data
ACKn
Slave
Master
ACKn
Stop
R/W
ACKn
Slave
ACKn
Slave
7-Bit Slave Address
R/W
SCL
SDA
Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13
Condition
Repeat Start
Condition
Step 14
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2
Bit 1 Bit 0
Master
ACKn
Last 8-Bit Data
Start
Condition
l64781.book Page 7 Friday, January 19, 2001 1:28 PM
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