633
18.1.3
Pin Configuration
Table 18-1 shows the LCD controller/driver pin configuration.
Table 18-1 Pin Configuration
Name
Abbreviation
I/OFunction
Segment output
pins
SEG24 to SEG1
(H8S/2646,
H8S/2646R,
H8S/2645)
Output
LCD segment drive pins
All pins are multiplexed as port pins (setting
programmable)
SEG40 to SEG1
(H8S/2648,
H8S/2648R,
H8S/2647)
Common output
pins
COM4 to COM1
Output
LCD common drive pins
Pins can be used in parallel with static or 1/2 duty
LCD power supply
pins
V1, V2, V3
—
Used when a bypass capacitor is connected
externally, and when an external power supply
circuit is used
18.1.4
Register Configuration
Table 18-2 shows the register configuration of the LCD controller/driver.
Table 18-2 LCD Controller/Driver Registers
Name
Abbreviation
R/W
Initial Value
Address
*
1
LCD port control register
LPCR
R/W
H'00
H'FC30
LCD control register
LCR
R/W
H'80
H'FC31
LCD control register 2
LCR2
R/W
H'60
H'FC32
LCD RAM
—
R/W
Undefined
H'FC40 to H'FC53
Module stop control
register D
MSTPCRD
R/W
B'11
******
H'FC60
Note:
*
1 Lower 16 bits of the address.
Summary of Contents for H8S/2645
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