msm7661b Oki Semiconductor, msm7661b Datasheet - Page 29

• Manufacturer Part Number: msm7661b
• Description: Ntsc/pal Digital Video Decoder
• Manufacturer: Oki Semiconductor

¡ Semiconductor
I
The I
As mentioned above, the write operation can be executed from subaddress to subaddress
continuously. When the write operation is executed at subaddresses discontinuously, the
Acknowledge and Stop condition formats are input repeatedly after Data 0.
If one of the following matters occurs, the decoder will not return "A" (Acknowledge).
• The slave address does not match.
• A non-existent subaddress is specified.
• The write attribute of a register does not match "X" (read/write control bit).
The input timing is shown below.
SDA
SCL
2
S
C BUS FORMAT
S
Slave Address
A
Subaddress
Data n
P
2
C-bus interface input format is shown below.
Start Condition
Slave Address
Symbol
Data Line Stable: Data Valid Change of Data Allowed
S
MSB
1
A
2
Start condition
Slave address 1000001X, 8th bit is write signal.
Acknowledge. Generated by slave
Subaddress byte
Data to write to address designated by subaddress.
Stop condition
Subaddress
I
2
C-bus Basic Input/Output Timing
7
A
8
ACK
9
Data 0
Description
t
1
C_SCL
A
2
......
3-8
ACK
9
Data n
MSM7661B
Stop Condition
P
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A P