Sim; Display - Siemens A55 Repair Documentation

7.6 SIM

Pin Name
3 CCLK
2 CCRST
7 CCIO
1 CCVCC

7.7 Display

Pin Name
1 2.9V
2 LCD_CLK
3 LCD_DAT
4 LCD_RS
5 LCD_CS
6 GND
7 VLCD
8 LCD_RESET
V1.20
A55/C55_Hitachi
IN/OUT Remarks
O Pulse for chipcard.
The chipcard is controlled directly from the
EGOLD+.
O Reset for chipcard
I Data pin for chipcard;
10 kΩ pull up at the
O
- Switchable power supply for chipcard;
220 nF capacitors are situated close to the
chipcard pins and are necessary for buffering
current spikes.
Remarks
Power supply display controller
Clock
Data line
Register select
Chip select
GND
Power supply display
Reset
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CCVCC pin
ICM MP CCQ GRM
04/03