7220 Datasheet, PDF (258/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPENDIX
6.7 Control registers
Vertical Position Register n
b7 b6 b5 b4 b3 b2 b1 b0
Vertical position register n (CV1,CV2) (n = 1 and 2) [Addresses 00E116, 00E216]
B
Name
Functions
0 _{Vertical display start positions}
to _{(CV1 : CV10 to CV16)}
6 _{(CV2 : CV20 to CV26)}
128 steps (0016 to 7F16)
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. 6.7.15 Vertical position register n
Addresses 00E116, 00E216
Character Size Register
b7 b6 b5 b4 b3 b2 b1 b0
Character size register (CS) [Address 00E416]
B
Name
Functions
0, 1 Character size of block 1
selection bits
(CS10, CS11)
00 : Minimum size
01 : Medium size
10 : Large size
11 : Do not set.
2,3 Character size of block 2
selection bits
(CS20,CS21)
00 : Minimum size
01 : Medium size
10 : Large size
11 : Do not set.
4
to
7
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
After reset R W
Indeterminate R W
Indeterminate R W
0
R—
Fig. 6.7.16 Character size register
Address 00E416
7220 Group User’s Manual
6-39