M37221M4H_15 Datasheet, PDF (62/114 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
The vertical display start position for each block can be set in 512
steps (where each step is 1TH (TH: HSYNC cycle)) as values “0016” to
“7F16” in vertical position register i (i = 1 and 2) (addresses 00E116
and 00E216) The vertical position register i is shown in Figure 8.11.6.
Vertical Position Register i
b7 b6 b5 b4 b3 b2 b1 b0
Vertical position register i (CVi) (i = 1 and 2) [Addresses 00E1 16, 00E216]
B
Name
Functions
0 _{Vertical display start positions} 128 steps (0016 to 7F16)
to _{(CVi : CVi0 to CVi6)}
6
7 Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
After reset R W
Indeterminate R W
0
R—
Fig. 8.11.6 Vertical Position Register i
Rev.1.00 Oct 01, 2002 page 60 of 110
REJ03B0134-0100Z