17
ICD-P320
• IC Pin Description
IC703 MN101C93KSB (SYSTEM CONTROL, USB/LED/LCD DRIVER) (MAIN BOARD (2/2))
Pin No. Pin Name I/O Pin Description
1 to 4 COM0 to 3 O LCD common 0 to 3 signal output
5 to 7 VLC3 to 1 I LCD VLC 3 to 1 signal input
8NCINot used. (Open)
9 FLMPWR O Flash memory power ON signal output (H: ON, L: OFF)
10 XREDLED O Red LED (REC) ON/OFF signal output (Open drain)
11 XGRNLED O Green LED (PB) ON/OFF signal output (Open drain)
12 HPMUTE O Headphone muting signal output (H: Headphone muting)
13 SPAMPPWR O Speaker power amplifier power ON signal output (H: ON, L: OFF)
14 HPAMPPWR O Headphone power amplifier power ON signal output (H: ON, L: OFF)
15 DSPPWR O DSP power ON signal output (H: ON, L: OFF)
16 VSS — Ground
17 OSC1 I Main clock input (8 MHz)
18 OSC2 O Main clock output (8 MHz)
19 VDD — Power supply pin (+3.1 V)
20 XI I Sub clock input (32.768 kHz)
21 XO O Sub clock output (32.768 kHz)
22 NMOD I Connect to VSS.
23 XRESET I CPU reset signal input
24 DMOD I Connect to VDD.
25 VREF — Power supply pin (+) for A/D converter. (+3.1 V)
26 BATT I Battery level A/D signal input
27 KEYIN0 I Key 0 A/D signal input
28 KEYIN1 I Key 1 A/D signal input
29 HOLDHPDET I HOLD switch/headphone detection signal input
30 SHIMUKE I Destination setting pin
31 XBATTEN O Battery level sense enable signal output
32 VDD — Power supply pin (+3.1 V)
33 D+ I/O USB D+ signal input/output
34 D– I/O USB D– signal input/output
35 VSS — Ground
36 FM_SCK O FM tuner serial clock signal output (Not used in this set)
37 FM_SDAO(TX) O FM tuner serial data signal output (Not used in this set)
38 FM_SDAI(RX) I FM tuner serial data signal input (Not used in this set)
39 SCK1(DSP) O DSP I/F serial clock signal output
40 SO1(DSP) O DSP I/F serial data signal output
41 SI1(DSP) I DSP I/F serial data signal input
42 XDSPRST O DSP reset signal output (L: Reset)
43 DSPIFREQ O DSP I/F request signal output
44 DSPIFRW O DSP I/F read/write signal output
45 LMUTE O Audio line muting signal output
46 TRON/CLKOUT O USB TRON signal output
47 BEEP O Beep signal output (PWM: 16 bit timer)
48 WAKEUP I Wakeup interruption signal input
49 FM_LCLDX O FM Local/DX ON signal output (H: Local, L: DX) (Not used in this set)
50 FM_SCE O FM serial chip select signal output (L: Enable) (Not used in this set)
51 XVBUSDET I VBUS detection signal input (L: VBUS ON)
52 XDSPIFACK I DSP acknowledge interruption signal input
53 FM_PWR O FM tuner power ON signal output (H: ON, L: OFF) (Not used in this set)
54 FLMRB I Flash memory ready/busy signal input
55 XFLMWP O Flash memory write protect signal output
56 XFLMCS0 O Flash memory chip select signal output
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