M37221M4H_15 Datasheet, PDF (102/114 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
Addresses 00DE16 and 00DF16
DA conversion register i
b7 b6 b5 b4 b3 b2 b1 b0
0
DA conversion register i (i=1, 2) (DAi) [Addresses 00DE16, 00DF16]
B
Name
0 DA conversion
to selection bit
5 (DAi0 to DAi5)
Functions
b5 b4 b3 b2 b1 b0
0 0 0 0 0 0 : 0/64Vcc
0 0 0 0 0 1 : 1/64Vcc
0 0 0 0 1 0 : 2/64Vcc
After reset R W
0 RW
6 Fix this bit to “0.”
1 1 1 1 0 1 : 61/64Vcc
1 1 1 1 1 0 : 62/64Vcc
1 1 1 1 1 1 : 63/64Vcc
0
7 Nothing is assigned. These bits are write disable bits. 0
When these bits are read out, the values are “0.”
Note : When use M37221M4H/M6H/M8H/MAH-XXXSP/FP,
there is not this register. Fix to “ 0016.”
RW
R—
Address 00E016
Horizontal Position Register
b7 b6 b5 b4 b3 b2 b1 b0
Horizontal position register (HR) [Address 00E0 16]
B
Name
Functions
0 Horizontal display start
to
5
positions (HR0 to HR5)
64 steps (0016 to 3F16)
6, 7 Nothing is assigned. These bits are write disable bits.
When thses bits are read out, the values are “0.”
After reset R W
0 RW
0 R—
Rev.1.00 Oct 01, 2002 page 100 of 110
REJ03B0134-0100Z