Segment Pin Assignment; Common Pin Assignment - Epson S1C17W18 Technical Manual

18 LCD DRIVER (LCD8B)

18.6.2 Segment Pin Assignment

The display data RAM address assignment for the segment pins can be inverted using the LCD8DSP.SEGREV bit.
When the LCD8DSP.SEGREV bit is set to 1, memory addresses are assigned to segment pins in ascending order.
When the LCD8DSP.SEGREV bit is set to 0, memory addresses are assigned to segment pins in descending order.

18.6.3 Common Pin Assignment

The display data RAM bit assignment for the common pins can be inverted using the LCD8DSP.COMREV bit.
When the LCD8DSP.COMREV bit is set to 1, memory bits are assigned to common pins in ascending order. When
the LCD8DSP.COMREV bit is set to 0, memory bits are assigned to common pins in descending order.
Bit
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
LCD8DSP.SEGREV
bit = 1
LCD8DSP.SEGREV
bit = 0
Bit
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
LCD8DSP.SEGREV
bit = 1
18-12
Address
Display area 0
Display area 1
(1) 128-pin package/chip
Address
Display area 0 *
Display area 1 *
· · ·
* Display area 0: 0x701c (SEG28) to 0x7022 (SEG34) are not used.
Display area 1: 0x705c (SEG28) to 0x7062 (SEG34) are not used.
(2) 80-pin package (LCD8DSP.SEGREV bit = 1)
Seiko Epson Corporation
· · ·
· · ·
S1C17W18 TECHNICAL MANUAL
LCD8DSP. LCD8DSP.
COMREV COMREV
bit = 1 bit = 0
COM0 COM7
COM1 COM6
COM2 COM5
COM3 COM4
COM4 COM3
COM5 COM2
COM6 COM1
COM7 COM0
COM0 COM7
COM1 COM6
COM2 COM5
COM3 COM4
COM4 COM3
COM5 COM2
COM6 COM1
COM7 COM0
LCD8DSP. LCD8DSP.
COMREV COMREV
bit = 1 bit = 0
COM0 COM7
COM1 COM6
COM2 COM5
COM3 COM4
COM4 COM3
COM5 COM2
COM6 COM1
COM7 COM0
COM0 COM7
COM1 COM6
COM2 COM5
COM3 COM4
COM4 COM3
COM5 COM2
COM6 COM1
COM7 COM0
(Rev. 1.2)