參數(shù)資料
型號(hào): CH7003B
廠商: Electronic Theatre Controls, Inc.
英文描述: Digital PC to TV Encoder
中文描述: 數(shù)碼電腦電視編碼器
文件頁數(shù): 28/50頁
文件大?。?/td> 334K
代理商: CH7003B
CHRONTEL
CH7003B
28
201-0000-023 Rev.4.1, 8/2/99
Transfer Protocols
(continued)
.
Figure 24: Alternating Read Cycle
If AutoInc = 1, then the address register will be incremented automatically and subsequent data bytes can be read
from successive registers, without providing a second RAB.
Figure 25: Auto-increment Read Cycle
When the auto-increment mode is enabled (AutoInc is set to 1), the Address Register will continue incrementing for
each read cycle. When the content of the Address Register reaches 2A, it will wrap around and start from 00h again.
The auto increment sequence can be terminated by either a “STOP” or “RESTART” condition. The read operation
can be terminated with a “STOP” condition.
Figure 25
shows an auto-increment read cycle terminated by a STOP or
RESTART condition.
SD
SC
1 - 8
RAB 1
9
10
ACK
Restart
Condition
Condition
Start
Condition
Stop
Master does
not acknowledge
1 - 7
Device ID
8
R/W*
9
ACK
CH7003
acknowledge
CH7003
acknowledge
1 - 8
Data 1
9
ACK
1 - 7
Device ID
8
R/W*
9
ACK
CH7003
acknowedge
I
2
C
I
2
C
10
Restart
Condition
1 - 8
RAB 2
9
10
ACK
Restart
Condition
1 - 7
Device D
8
R/W*
9
ACK
CH7003
acknowledge
CH7003
acknowledge
1 - 8
Data 2
9
ACK
1 - 7
Device D
8
R/W*
9
ACK
CH7003
acknowledge
I
2
C
I
2
C
Master
does not
acknowledge
Master
acknowledge
SD
SC
1 - 8
RAB n
9
10
ACK
Restart
Condition
Condition
Start
Condition
Stop
Master does
not acknowledge
just before Stop
condition
1 - 7
Device ID
8
R/W*
9
ACK
CH7003
acknowledge
CH7003
1 - 8
Data n
9
ACK
1 - 7
Device ID
8
R/W*
9
ACK
CH7003
acknowledge
1 - 8
Data
n+1
9
ACK
I
2
C
I
2
C
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