參數(shù)資料
型號: HCD66727A04BP
廠商: Hitachi,Ltd.
英文描述: Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
中文描述: 低功耗點陣液晶顯示控制器/鍵掃描功能驅(qū)動程序
文件頁數(shù): 47/97頁
文件大小: 513K
代理商: HCD66727A04BP
HD66727
47
Table 24
First Bytes of I
2
C Bus Interface Data
Transferred Bit String
First Byte of
S
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
I
2
C bus system *
1
Transfer
start
A6
A5
A4
A3
A2
A1
A0
R/W
ACK
HD66727 *
2
Transfer
start
0
1
1
1
ID1
ID0
RS
R/W
ACK
Notes: 1. Bits 1 to 7 of the first byte of the I
2
C bus system indicate the I
2
C slave address.
2. Bits 1 to 6 of the first byte of the HD66727 indicate the device ID code.
Table 25
RS and R/W Bit Function of I
2
C Bus Interface Data
RS
R/W
Function
0
0
Writes instruction
0
1
Reads key scan data and BF flag
1
0
Writes RAM data
1
1
Reads RAM data
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