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參數(shù)資料
| 型號(hào)： | CH7006C-T |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; Body Material:Aluminum; Series:PT06; Number of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:14-18 |
| 中文描述： | 數(shù)字電視編碼器電腦功能 |
| 文件頁數(shù)： | 25/49頁 |
| 文件大?。?/td> | 338K |
| 代理商： | CH7006C-T |
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201-0000-026 Rev 2.1, 8/2/99
25
CHRONTEL
CH7006C
Transfer Protocol
Both read and write cycles can be executed in “Alternating” and “Auto-increment” modes. Alternating mode
expects a register address prior to each read or write from that location (i.e., transfers alternate between address and
data). Auto-increment mode allows you to establish the initial register location, then automatically increments the
register address after each subsequent data access (i.e., transfers will be address, data data data...). A basic serial port
transfer protocol is shown in
Figure 20
and described below.
Figure 20: Serial Port Transfer Protocol
1. The transfer sequence is initiated when a high-to-low transition of SD occurs while SC is high; this is the
“START” condition. Transitions of address and data bits can only occur while SC is low.
2. The transfer sequence is terminated when a low-to-high transition of SD occurs while SC is high; this is the
“STOP” condition.
3. Upon receiving the first START condition, the CH7006 expects a Device Address Byte (DAB) from the
master device. The value of the device address is shown in the DAB data format below.
4. After the DAB is received, the CH7006 expects a Register Address Byte (RAB) from the master. The
format of the RAB is shown in the RAB data format below (note that B7 is not used).
Device Address Byte (DAB)
R/W
Read/Write Indicator
“0”:
master device will write to the CH7006 at the register location specified by the address
AR[5:0]
“1”:
master device will read from the CH7006 at the register location specified by the
address AR[5:0].
Register Address Byte (RAB)
B7
B6
B5
B4
B3
B2
B1
B0
1
1
1
0
1
0
1
R/W
B7
B6
B5
B4
B3
B2
B1
B0
1
AutoInc
AR[5]
AR[4]
AR[3]
AR[2]
AR[1]
AR[0]
SD
SC
1 - 8
9
Data
1
ACK
acCH7006
Condition
Start
Condition
Stop
CH7006
acknowledge
1 - 8
Data n
9
acCH7006
CH7
Device ID
8
R/W*
9
ACK
I
2
C
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PDF描述 |
|---|---|
| CH7006C-V | Circular Connector; Body Material:Aluminum; Series:PT06; No. of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:14-18 |
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