EM78862B View Datasheet(PDF) - ELAN Microelectronics
Part Name
Description
MFG CO.
'EM78862B' PDF : 40 Pages View PDF
EM78862B
8-Bit RISC Type Microprocessor
6.8.2 LCD Display Area
The LCD display data is stored in the data RAM. The relation between data area and
COM/SEG pin is as shown below.
SEGMENT
SEG 0
SEG 1
:
:
SEG 58
SEG 59
Unused
Unused
Unused
SEGMENT
SEG 0
SEG 1
:
:
SEG 58
SEG 59
Unused
:
Unused
IOCC (COM7 ~ COM0)
IOCC (COM 8)
X
:
X
IOCB (Address)
00H
01H
3AH
3BH
3CH
:
3FH
IOCB (Address)
40H
41H
7AH
7BH
7CH
:
7FH
Remarks
1/8 DUTY
Remarks
1/9 DUTY
6.8.2.1 IOCB (LCD RAM Display Address)
Bit 7
0
Bit 6
Bit 5
Bit 4
Bit 3
LCDA6 LCDA5 LCDA4 LCDA3
Bit 0 ~ 6: (LCDA0~LCDA6) LCD address (up to 120)
Bit 7: Unused. Fixed at ‘0’
Bit 2
LCDA2
Bit 1
LCDA1
NOTE
Write only when LCD is enabled. Read/Write when disabled.
Bit 0
LCDA0
6.8.2.2 IOCC (LCD RAM Display Data)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
LCDD7 LCDD6 LCDD5 LCDD4 LCDD3 LCDD2
Bit 0 ~7: (LCDD0~LCDD7) LCD RAM display data register
Bit 1
LCDD1
Bit 0
LCDD0
This specification is subject to change without further notice.
Mar.01.2005 (V1.1)25 of 36
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