EM78862B View Datasheet(PDF) - ELAN Microelectronics
Part Name
Description
MFG CO.
'EM78862B' PDF : 40 Pages View PDF
EM78862B
8-Bit RISC Type Microprocessor
Bit 4 ~ 5: Unused. Clear the bits to ‘0’
Bit 6:
(P8SL) Port 8 low nibble switch
0: Normal I/O port
1: Segment output
Bit 7:
(P8SH) Port 8 high nibble switch
0: Normal I/O port
1: Segment output
6.2.9 IOCB (LCD Address, Counter 1 Preset Register)
6.2.9.1 Page 0 (LCD Address)
Bit 7
0
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LCDA6 LCDA5 LCDA4 LCDA3 LCDA2 LCDA1 LCDA0
Bit 0 ~ 6: (LCDA0~LCDA6) LCD address
The LCD display data is stored in the data RAM. The relation between data area
and COM/SEG pin is as follows:
SEGMENT
SEG 0
SEG 1
:
:
SEG 38
SEG 39
Unused
Unused
Unused
SEGMENT
SEG 0
SEG 1
:
:
SEG 58
SEG 59
Unused
:
IOCC (COM7 ~ COM0)
IOCC(COM 8)
X
:
IOCB (Address)
00H
01H
3AH
3BH
3CH
:
3FH
IOCB(Address)
40H
41H
7AH
7BH
7CH
:
Remarks
1/8 DUTY
Remarks
1/9 DUTY
Bit 7: Unused. Fixed at ‘0’.
NOTE
Writable only when LCD is enabled. Read/Write when disabled.
14 of 36 Mar.01.2005 (V1.1)
This specification is subject to change without further notice.
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