Page 158
Epson Research and Development
Vancouver Design Center
CRT/TV Ink/Cursor Start Address Register
REG[081h]
RW
CRT/TV
CRT/TV
CRT/TV
CRT/TV
CRT/TV
CRT/TV
CRT/TV
CRT/TV
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Start Address Start Address Start Address Start Address Start Address Start Address Start Address Start Address
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
bits 7-0
CRT/TV Ink/Cursor Start Address Bits [7:0]
Encoded bits defining the start address for the CRT/TV Ink/Cursor. For Cursor modes, a
start address of 0 should be valid for most applications. For Ink or special Cursor modes,
the start address should be set at an address location that does not conflict with the display
memory of Dual Panel Buffer, which always takes the top M memory locations in bytes,
where
M = (Panel Height x Panel Width / 16) x c, c = 1 for monochrome, 4 for color panel.
Table 8-28: CRT/TV Ink/Cursor Start Address Encoding
CRT/TV Ink/Cursor Start Address Bits [7:0]
Start Address
Memory Size - 1024
Memory Size - n x 8192
0
n = 255...1
Note
The effect of this register takes place at the next CRT/TV vertical non-display period.
Note
See Section 10, “Display Buffer” on page 182 for display buffer organization.
CRT/TV Cursor X Position Register 0
REG[082h]
RW
CRT/TV
Cursor X
CRT/TV
Cursor X
CRT/TV
Cursor X
CRT/TV
Cursor X
CRT/TV
Cursor X
CRT/TV
Cursor X
CRT/TV
Cursor X
CRT/TV
Cursor X
Position Bit 7 Position Bit 6 Position Bit 5 Position Bit 4 Position Bit 3 Position Bit 2 Position Bit 1 Position Bit 0
CRT/TV Cursor X Position Register 1
REG[083h]
RW
CRT/TV
Cursor X
CRT/TV
Cursor X
CRT/TV
Cursor X Sign
n/a
n/a
n/a
n/a
n/a
Position Bit 9 Position Bit 8
REG[083h] bit 7
CRT/TV Cursor X Sign
When this bit = 1, it defines the CRT/TV Cursor X Position register to be a negative num-
ber. The negative number shall not exceed 63 decimal.
When this bit = 0, it defines the CRT/TV Cursor X Position register to be a positive num-
ber.
S1D13506
X25B-A-001-10
Hardware Functional Specification
Issue Date: 01/02/06
EPSON [ EPSON COMPANY ]
