Sony HS-MB1 - Page 37

HS-MB1
37
• IC Pin Function Description
VIDEO BOARD (3/7) IC100 MB91F467RAPMC-GE1 (SYSTEM CONTROL)
Pin No. Pin Name I/O Description
1 VSS — Ground
2 STOP IN I Power supply cut detect signal input
3 to 5 NO USE O Not used. (Open)
6 I2C_SDA I/O I2C SDA signal input/output
7 I2C_SCL O I2C SCL signal output
8 EEPROM_SDA I/O EEPROM SDA signal input/output
9 EEPROM_SCL O EEPROM SCL signal output
10 ZONE1 P LIMIT I ZONE 1 (9) over power supply detect signal input
11, 12 VCC3 — Power supply pin (+3.3 V)
13 VSS — Ground
14 C_1 — Regulator reference capacitor connecting pin
15 ZONE2 P LIMIT I ZONE 2 (10) over power supply detect signal input
16 ZONE3 P LIMIT I ZONE 3 (11) over power supply detect signal input
17 ZONE4 P LIMIT I ZONE 4 (12) over power supply detect signal input
18 ZONE5 P LIMIT I ZONE 5 (13) over power supply detect signal input
19 ZONE6 P LIMIT I ZONE 6 (14) over power supply detect signal input
20 ZONE7 P LIMIT I ZONE 7 (15) over power supply detect signal input
21 ZONE8 P LIMIT I ZONE 8 (16) over power supply detect signal input
22
FMS6501 COMPOSITE
CONTROL SELECT
O FMS6501 composite control select signal output
23
FMS6501 COMPO-
NENT CB SIGNAL
CONTROL SELECT
O FMS6501 component Cb signal control select signal output
24
FMS6501 COMPO-
NENT Y SIGNAL CON-
TROL SELECT
O FMS6501 component Y signal control select signal output
25
FMS6501 COMPO-
NENT CR SIGNAL
CONTROL SELECT
O FMS6501 component Cr signal control select signal output
26, 27 NO USE O Not used. (Open)
28 NO USE O Not used. (Fixed at H)
29, 30 NO USE O Not used. (Open)
31 POW LED_SW O DC IN indicator LED control signal output
32, 33 NO USE O Not used. (Open)
34 SPCONT1 O Doorbell 1 speaker control signal output
35 SPCONT2 O Doorbell 2 speaker control signal output
36 VCC3 — Power supply pin (+3.3 V)
37 C_2 — Regulator reference capacitor connecting pin
38 VSS — Ground
39 X0 I Main clock signal input (4 MHz)
40 X1 O Main clock signal output (4 MHz)
41 VSS — Ground
42 X0A I Not used. (Fixed at L)
43 X1A O Not used. (Open)
44 VCC3 — Power supply pin (+3.3 V)
45 VSS — Ground
46 ASEL1 CLK O Audio selector (R2S1520) 1 CLK signal output
47 ASEL1 DAT O Audio selector (R2S1520) 1 DAT signal output
48 ASEL2 CLK O Audio selector (R2S1520) 2 CLK signal output
49 ASEL2 DAT O Audio selector (R2S1520) 2 DAT signal output
50 ASEL3 CLK O Audio selector (R2S1520) 3 CLK signal output
51 ASEL3 DAT O Audio selector (R2S1520) 3 DAT signal output
52 ASEL4 CLK O Audio selector (R2S1520) 4 CLK signal output
53 ASEL4 DAT O Audio selector (R2S1520) 4 DAT signal output