EM78468
8-BIT Microcontroller
Bit 4 ~ 0 (LCDA4 ~ LCDA0): LCD RAM address
RB (LCD data buffer)
RA
Segment
Bit 3
Bit 2
Bit 1
Bit 0
(LCD address)
Bit 7 ~4
(LCD_D3) (LCD_D2) (LCD_D1) (LCD_D0)
00H
01H
02H
--
--
--
SEG0
SEG1
SEG2
|
|
|
1DH
1EH
1FH
--
--
--
X
SEG29
SEG30
SEG31
Common
COM3
COM2
COM1
COM0
4.1.12 RB/LCD_DB (LCD Data Buffer)
(Address: 0Bh)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
--
--
--
--
LCD_D 3 LCD_D 2 LCD_D 1 LCD_D 0
Bit 7 ~ 4: Not used
Bit 3~0 (LCD_D3 ~ LCD_D0): LCD RAM data transfer register
4.1.13 RC/CNTER (Counter Enable Register)
(Address: 0Ch)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
--
--
--
--
LPWTEN HPWTEN CNT2EN CNT1EN
Bit 7,5: Not used, must fixed to “0”
Bit 6,4: Not used
Bit 3(LPWTEN): low pulse width timer enable bit,
LPWTEN = “0”: Disable LPWT. Count operation stop.
LPWTEN = “1”: Enable LPWT. Count operation start.
Bit 2(HPWTEN): high pulse width timer enable bit
HPWTEN = “0”: Disable HPWT. Count operation stop.
HPWTEN = “1”: Enable HPWT. Count operation start.
Bit 1(CNT2EN): counter 2 enable bit
CNT2EN = ”0”: Disable Counter 2. Count operation stop.
CNT2EN = “1”: Enable Counter 2. Count operation start.
Bit 0(CNT1EN): counter 1 enable bit
CNT1EN = “0”: Disable Counter 1. Count operation stop.
Product Specification (V1.1) 04.11.2005
(This specification is subject to change without further notice)
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ELAN [ ELAN MICROELECTRONICS CORP ]
