em78p510nso32j/s ELAN Microelectronics Corp, em78p510nso32j/s Datasheet - Page 22

• Manufacturer Part Number: em78p510nso32j/s
• Description: 8-bit Microprocessor With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

EM78P510N
8-Bit Microprocessor with OTP ROM
16 •
6.2.16 Bank 1 R5 LCDCR (LCD Control Register)
Bit 7 (LCDEN): LCD Enable Select Bit
Bit 6 (LCDTYPE): LCD Drive Waveform Type Select Bit
Bits 5~4 (BS1~BS0): LCD Bias Select Bits
Bits 3~2 (DS1~DS0): LCD Duty Select Bits
Bits 1~0 (LCDF1~LCDF0): LCD Frame Frequency Control Bits
6.2.17 Bank 1 R6 LCDAR (LCD Address Register)
Bits 7~5: Reserved
Bits 4~0 (LCD_A4~LCD_A0): LCD RAM Address
LCDF1 LCDF0
LCDEN
Bit 7
0
0
1
1
Bit 7
0
0
1
0
1
LCDTYPE
Bit 6
Bit 6
Fs/(512×1) = 64.0
Fs/(560×1) = 58.5
Fs/(608×1) = 53.9
Fs/(464×1) = 70.6
0
0 : LCD disabled. All common/segment outputs are set to VDD level.
1 : LCD enabled
0 : A type wave
1 : B type wave
Static
BS1
DS1
LCD Frame Frequency (e.q. Fs=32.768K)
0
0
1
Bit 5
0
0
1
1
Bit 5
BS1
0
LCD_A4
Fs/(172×3) =63.5
Fs/(188×3) = 58
Fs/(204×3) = 53.5 Fs/(152×4) = 53.9
Fs/(156×3) = 70
Bit 4
Bit 4
BS0
(This specification is subject to change without further notice)
1/3 Duty
BS0
DS0
0
1
0
1
0
1
×
LCD_A3
Bit 3
Bit 3
DS1
Product Specification (V1.1) 01.25.2008
Fs/(128×4) = 64
Fs/(140×4) = 58.5
Fs/(116×4) = 70.6
LCD_A2
1/4 Duty
Bit 2
Bit 2
DS0
LCD Bias Select
LCD Duty
1/3 Duty
1/4 Duty
1/8 Duty
1/2 Bias
1/3 Bias
1/4 Bias
LCD_A1
Static
LCDF1
Bit 1
Bit 1
Fs/(64×8) = 64.0
Fs/(70×8) = 58.5
Fs/(76×8) = 53.9
Fs/(58×8) = 70.6
1/8 Duty
LCD_A0
LCDF0
Bit 0
Bit 0