M37221M4H_15 Datasheet, PDF (97/114 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Address 00CB16
Port P5 Direction Register
b7 b6 b5 b4 b3 b2 b1 b0
Port P5 direction register (D5) [Address 00CB16]
b
Name
Functions
0, 1 Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
2 Port P52 output signal
selection bit (P52SEL)
0 : R signal output
1 : Port P52 output
3 Port P53 output signal
selection bit (P53SEL)
0 : G signal output
1 : Port P53 output
4 Port P54 output signal
selection bit (P54SEL)
0 : B signal output
1 : Port P54 output
5 Port P55 output signal
selection bit (P55SEL)
0 : OUT1 signal output
1 : Port P55 output
6,7 Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.
After reset R W
0 R—
0 RW
0 RW
0 RW
0 RW
Indeterminate R —
Address 00CD16
P3 output mode control register
b7 b6 b5 b4 b3 b2 b1 b0
P3 output mode control register(P3S) [Address 00CD16]
B
Name
0 P30 output form
selection bit (P30S)
1 ^{P31 output form}
selection bit (P31S)
2 ^{DA1 output enable bit}
(DA1S)
3 ^{DA2 output enable bit}
(DA2S)
Functions
0: CMOS output
1: N-channel open-drain output
0: CMOS output
1: N-channel open-drain output
0: P30 input/output
1: DA1 output
After reset R W
0 RW
0 RW
0 RW
0: P31 input/output
1: DA2 output
0 ^RW
4 to 7 ^{Nothing is assigned. These bits are write disable bits. 0}
When these bits are read out, the values are “0.”
R—
Rev.1.00 Oct 01, 2002 page 95 of 110
REJ03B0134-0100Z