M3727GM6 Datasheet, PDF (33/129 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

M3727GM6/M8–XXXSP/FP M37272E8SP/FP
I²C Control Register
b7 b6 b5 b4 b3 b2 b1 b0
I²C control register (S1D address 00F916)
B
Name
Functions
0 Bit counter
to (Number of transmit/recieve
2 bits)
(BC0 to BC2)
b2 b1 b0
0 0 0:8
0 0 1:7
0 1 0:6
0 1 1:5
1 0 0:4
1 0 1:3
1 1 0:2
1 1 1:1
After reset R W
0 _RW
3 _I2C-BUS interface use
enable bit (ESO)
0 : Disabled
1 : Enabled
4 Data format selection
bit(ALS)
0 : Addressing mode
1 : Free data format
5 Addressing format selection 0 : 7-bit addressing format
bit (10BIT SAD)
1 : 10-bit addressing format
6, 7 Connection control bits
between I²C-BUS interface
and ports
b7 b6 Connection port (See note)
0 0 : None
0 1 : SCL1, SDA1
1 0 : SCL2, SDA2
1 1 : SCL1, SDA1
SCL2, SDA2
0 _RW
0 _RW
0 _RW
0 _RW
Note: When using ports P11-P14 as I²C-BUS interface, the output structure changes
automatically from CMOS output to N-channel open-drain output.
Fig. 8.6.6 I²C Control Register
Rev.1.00 Apr 01, 2001 page 33 of 127
REJ03B0132-0100Z