M37273M8 Datasheet, PDF (119/138 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37273M8–XXXSP, M37273MF–XXXSP
M37273E8SP, M37273EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Address 00C116, 00C316, 00C516
Port Pi Direction Register
b7 b6 b5 b4 b3 b2 b1 b0
Port Pi direction register (PiD) (i=0,1,2) [Addresses 00C1 16, 00C316, 00C516]
B
Name
0 Port Pi direction register
1
2
3
4
5
6
7
Functions
0 : Port Pi0 input mode
1 : Port Pi0 output mode
0 : Port Pi1 input mode
1 : Port Pi1 output mode
0 : Port Pi2 input mode
1 : Port Pi2 output mode
0 : Port Pi3 input mode
1 : Port Pi3 output mode
0 : Port Pi4 input mode
1 : Port Pi4 output mode
0 : Port Pi5 input mode
1 : Port Pi5 output mode
0 : Port Pi6 input mode
1 : Port Pi6 output mode
0 : Port Pi7 input mode
1 : Port Pi7 output mode
After reset R W
0 _RW
0 RW
0 _RW
0 RW
0 _RW
0 RW
0 _RW
0 RW
Address 00C716
Port P3 Direction Register
b7 b6 b5 b4 b3 b2 b1 b0
Port P3 direction register (P3D) [Address 00C7 16]
B
Name
0 Port P3 direction register
Functions
0 : Port P30 input mode
1 : Port P30 output mode
After reset R W
0 RW
1
0 : Port P31 input mode
0 RW
1 : Port P31 output mode
2 Port P30 output structure 0 : CMOS output
0
selection bit (P30C)
1 : N-channel open-drain output
RW
3 Port P31 output structure 0 : CMOS output
0
selection bit (P30C)
1 : N-channel open-drain output
RW
4, 5, Nothing is assigned. These bits are write disable bits.
7 When these bits are read out, the values are “0.”
6 Timer 3 count source
selection bit (T3SC)
Refer to Timer section.
0 R—
0 RW
Rev. 1.0
119