Section 13 LCD Controller/Driver
Rev. 7.00 Mar 10, 2005 page 418 of 652
REJ09B0042-0700
13.1.3 Pin Configuration
Table 13.1 shows the LCD controller/driver pin configuration.
Table 13.1 Pin Configuration
Name Abbr. I/O Function
Segment output pins SEG
32
to SEG
1
Output
LCD segment drive pins
All pins are multiplexed as port pins
(setting programmable)
Common output pins COM
4
to COM
1
Output
LCD common drive pins
Pins can be used in parallel with static or
1/2 duty
LCD power supply pins V
1
, V
2
, V
3
—
Used when a bypass capacitor is
connected externally, and when an
external power supply circuit is used
13.1.4 Register Configuration
Table 13.2 shows the register configuration of the LCD controller/driver.
Table 13.2 LCD Controller/Driver Registers
Name Abbr. R/W Initial Value Address
LCD port control register LPCR R/W — H'FFC0
LCD control register LCR R/W H'80 H'FFC1
LCD control register 2 LCR2 R/W — H'FFC2
LCD RAM — R/W Undefined H'F740 to H'F74F
Clock stop register 2 CKSTPR2 R/W H'FF H'FFFB
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