11
ICD-P17
5-1. IC PIN DESCRIPTION
• IC702 MB91F233-148 (SYSTEM CONTROL) (MAIN BOARD)
Pin No. Pin Name I/O Pin Description
1DSPSCK O Serial clock signal output to the DSP IC (IC101)
2FLMCLE O Command latch enable signal output to the flash memory IC (IC701)
3 – 10 DATA0 – DATA7 I/O Data input/output with the flash memory IC (IC701) and USB controller IC (IC8101)
11 XFLMCS0 O Chip enable signal output to the flash memory IC (IC701)
12 DSPSYSCK O System clock control signal output for DSP (IC101)
13 X0A32K I 32 kHz oscillator pin (32 kHz signal input) (IC703)
14 X1A32K — 32 kHz oscillator pin
15 VCC3BCK — Power supply pin for internal logic back up
16 VSS — Ground pin
17 VCC3LGC — Internal logic power supply pin
18 BEEP O Beep signal output
19 XFLMWE O Write enable signal output to the flash memory IC (IC701)
20 XFLMRE O Read enable signal output to the flash memory IC (IC701)
21 FLMALE O Address latch enable signal output to the flash memory IC (IC701)
22 FLMRB I Ready/busy signal input from the flash memory IC (IC701)
23 XFLMWP O Write protect signal output to the flash memory IC (IC701)
24 – 30 USBADR0 – 6 O Address signal output to the USB controller IC (IC8101)
31 XUSBCS O Chip select signal output to the USB controller IC (IC8101)
32 XUSBRD O Read strob signal output to the USB controller IC (IC8101)
33 XUSBRST O Reset signal output to the USB controller IC (IC8101)
34 XUSBLWR O Low write strob signal output to the USB controller IC (IC8101)
35 XFLMPWR O Power control signal output for flash memory
36 AVSS — Power supply pin for analog
37 AVREF — Reference power supply pin
38 AVSS — Ground pin for analog
39 BATT I Battery voltage detection signal input
40 KEYIN0 I Key 0A/D input
41 KEYIN1 I Key 1A/D input
42 XBATTEN O Battery detection control signal output
43 – 45 PC4 – PC6 I Not used in this set. (Open)
46 LMUTE O Mute signal output
47 VSS — Ground pin
48 AVCC3IO — Power supply pin
49 – 74 SEG0 – SEG25 O LCD segment signal output to the LCD901
75 DVCC — Power supply pin
76 DVSS — Ground pin
77 – 82 SEG26 – SEG31 O LCD segment signal output to the LCD901
83 – 86 COM0 – COM3 O LCD common signal output to the LCD901
87 MOD2 I Operation mode signal input
88, 89 MOD1, MOD0 I Operation mode signal input (Fixed at “L” in this set.)
90 XCPURST I CPU external reset signal input to the reset IC (IC704)
91 – 94 LCDV0 – LCDV3 — LCD reference power supply input pin
95 RX I Input/output port (Flash write RX)
96 TX O Input/output port (Flash write TX)
97 PO2 O Not used in this set. (Open)
98 RTCSIN I Serial data signal input from the real time clock IC (IC703)
99 RTCSOT O Serial data signal output to the real time clock IC (IC703)
100 RTCSCK O Serial clock signal output to the real time clock IC (IC703)
101 RTCCS O Chip select signal output to the real time clock IC (IC703)
102 XDSPRST O Reset signal output to the DSP IC (IC101)
103 WAKEUP I Wake up interruption signal input
SECTION 5
DIAGRAMS