Sony ICD-P620 Service Manual page 16

ICD-P620
• IC Pin Function Description
IC703 MN101C93KSK (SYSTEM CONTROL, USB/LED/LCD DRIVER) (MAIN BOARD (2/2))
Pin No. Pin Name
1 to 4 COM0 to 3
5 to 7 VLC3 to 1
8 C2/N.C
9 FLMPWR
10 XREDLED
11 XGRNLED
12 HPMUTE
13 SPAMPPWR
14 HPAMPPWR
15 DSPPWR
16 VSS
17 OSC1
18 OSC2
19 VDD
20 XI
21 XO
22 NMOD
23 XRESET
24 DMOD
25 VREF
26 BATT
27 KEYIN0
28 KEYIN1
29 HOLDHPDET
30 SHIMUKE
31 XBATTEN
32 VDD
33 D+
34 D–
35 VSS
36 FM_SCK
37 FM_SDAO(TX)
38 FM_SDAI(RX)
39 SCK1(DSP)
40 SO1(DSP)
41 SI1(DSP)
42 XDSPRST
43 DSPIFREQ
44 DSPIFRW
45 LMUTE
46 TRON/CLKOUT
47 BEEP
48 WAKEUP
49 FM_LCLDX
50 FM_SCE
51 XVBUSDET
52 XDSPIFACK
53 FM_PWR
16
I/O
O LCD common 0 to 3 signal output
I LCD VLC 3 to 1 signal input
I Not used (Open)
O Flash memory power ON signal output (H: ON, L: OFF)
O Red LED ON/OFF signal output (Open drain)
O Green LED ON/OFF signal output (Open drain)
O Headphone muting signal output (H: Muting)
O Speaker power amplifi er power ON signal output (H: ON, L: OFF)
O Headphone power amplifi er power ON signal output (H: ON, L: OFF)
O DSP power control signal output (H: ON, L: OFF)
— Ground
I Main clock input (8 MHz)
O Main clock output (8 MHz)
— Power supply (+3.1 V)
I Sub clock input (32.768 kHz)
O Sub clock output (32.768 kHz)
I Not used (Connected to GND)
I CPU reset signal input
I Not used (Pull up)
I Reference voltage input for A/D converter. (+3.1 V)
I Battery level A/D input
I Key 0 A/D input
I Key 1 A/D input
I HOLD switch/headphone detection signal input
I Destination setting pin
O Battery level sense enable signal output (L: Enable)
— Power supply (+3.1 V)
I/O USB D+ signal input/output
I/O USB D– signal input/output
— Ground
O FM tuner serial clock output
O FM tuner serial data output
I FM tuner serial data input
O DSP I/F serial clock output
O DSP I/F serial data output
I DSP I/F serial data input
O DSP reset signal output (L: Reset)
O DSP I/F request signal output
O DSP I/F read/write signal output
O Audio line muting signal output
O USB TRON signal output
O Beep signal output
I Wakeup interruption signal input
O FM Local/DX ON signal output
O FM serial chip select signal output
I VBUS detection signal input (L: VBUS ON)
I DSP acknowledge interruption signal input
O FM tuner power ON signal output
Description
(Not used in this set.)
(Not used in this set.)
(Not used in this set.)
(Not used in this set.)
(Not used in this set.)
(Not used in this set.)