M35071 Mitsubishi, M35071 Datasheet - Page 25

• Manufacturer Part Number: M35071
• Description: SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
• Manufacturer: Mitsubishi

DATA INPUT
(1) I
Fig. 12 Start state / Stop state
Fig. 13 Control byte configuration
This IC has a built-in data transmission interface which utilizes 2
unidirectional buses. In communications, this IC functions as a
slave reception device.
The IC is synchronized with the serial clock (SCL) sent from the
master device and receives the data (SDA). Communications
are controlled from the start/stop states. Also, always input the
control byte after attaining the start state.
The below chart shows the start/stop state and control byte
configuration.
2
C-Bus communication function
SDA
SCL
Start state
Control byte: 7C
16
(Fixed)
0
1
Data receive
1
Slave address
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
1
Data modify
enable
1
1
0
R/W
0
(0: Written)
MITSUBISHI MICROCOMPUTERS
M35071-XXXSP/FP
Stop state
25