M37221M4H_15 Datasheet, PDF (107/114 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 00EF16
A-D Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
A-D control register 2 (AD2) [Address 00EF16]
B
Name
0 D-A converter set bits
to (ADC0 to ADC5)
5
Functions
b5 b4 b3 b2 b1 b0
0 0 0 0 0 0 : 1/128Vcc
0 0 0 0 0 1 : 3/128Vcc
0 0 0 0 1 0 : 5/128Vcc
After reset R W
0
RW
1 1 1 1 0 1 : 123/128Vcc
1 1 1 1 1 0 : 125/128Vcc
1 1 1 1 1 1 : 127/128Vcc
6, 7 Nothing is assigned. These bits are write disable bits.
When these bits are reed out, the values are “ 0.”
0
R—
Addresses 00F416
Timer 12 Mode Register
b7 b6 b5 b4 b3 b2 b1 b0
0
Timer mode register (T12M) [Address 00F416]
B
Name
Functions
0 Timer 1 count source 0: f(XIN)/16
selection bit 1 (T12M0) 1: f(XIN)/4096
After reset R W
0 RW
1 Timer 2 count source 0: Interrupt clock source
selection bit (T12M1) 1: External clock from TIM2 pin
0 RW
2 Timer 1 count
stop bit (T12M2)
0: Count start
1: Count stop
0 RW
3 Timer 2 count stop bit 0: Count start
(T12M3)
1: Count stop
0 RW
4 _{Timer 2 internal count 0: f(X}IN)/16
source selection bit 2 1: Timer 1 overflow
(T12M4)
0 RW
5 Fix this bit to “0.”
0 RW
6, 7 Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
0 R—
Rev.1.00 Oct 01, 2002 page 105 of 110
REJ03B0134-0100Z