Sony HS-MB1 - Page 39

HS-MB1
39
Pin No. Pin Name I/O Description
110 DOOR SP SW A O Doorbell 1/2 speaker enable switch (TC4053) A signal output
111 DOOR SP SW B O Doorbell 1/2 speaker enable switch (TC4053) B signal output
112 DOOR SP SW C O Doorbell 1/2 speaker enable switch (TC4053) C signal output
113 DOOR SP SW INH O Doorbell 1/2 speaker enable switch (TC4053) INH signal output
114 AVSS/AVRL — Ground
115 AVCC3 — Power supply pin (+3.3 V)
116 AVRH — Power supply pin (+3.3 V)
117
I2C DATA BUS MONI-
TOR
I/O I2C DAT signal input/output (for debug)
118 I2C CLK MONITOR O I2C CLK signal output (for debug)
119 to 122 NO USE O Not used. (Open)
123
MONITOR SELECT
SW A
O Monitor selector switch (TC4052) A signal output
124
MONITOR SELECT
SW B
O Monitor selector switch (TC4052) B signal output
125 NO USE O Not used. (Open)
126 RST_TRG O Main micon reset trigger signal output
127 MD3 — Connect to GND.
128 MD2 — Not used. (Fixed at L)
129 MD1 — Connect to GND.
130 MD0 — Connect to GND.
131 INITX I External reset signal input
132 VSS — Ground
133 VCC5 — Power supply pin (+3.3 V)
134 RS-232C_RX I Stack communication /fl ash update RX signal input
135 RS-232C_TX O Stack communication /fl ash update TX signal output
136 NO USE O Not used. (Open)
137 SOURCE1 (STR) RX I SOURCE 1 (STR) communication RX signal input
138 SOURCE1 (STR) TX O SOURCE 1 (STR) communication TX signal output
139 NO USE O Not used. (Open)
140 KEYPAD1 RX I Keypad 1 communication RX signal input
141 KEYPAD1 TX O Keypad 1 communication TX signal output
142 NO USE O Not used. (Open)
143 KEYPAD2 RX I Keypad 2 communication RX signal input
144 KEYPAD2 TX O Keypad 2 communication TX signal output
145 NO USE O Not used. (Open)
146 VSS — Ground
147 VCC5 — Power supply pin (+3.3 V)
148 KEYPAD3 RX I Keypad 3 communication RX signal input
149 KEYPAD3 TX O Keypad 3 communication TX signal output
150 NO USE O Not used. (Open)
151 KEYPAD4 RX I Keypad 4 communication RX signal input
152 KEYPAD4 TX O Keypad 4 communication TX signal output
153 NO USE O Not used. (Open)
154 DMPORT_RX I DMPORT communication RX signal input
155 DMPORT_TX O DMPORT communication TX signal output
156 DMPORT_DET I DMPORT detect signal input
157 KEYPAD5 TX O Keypad 5 communication TX signal output
158 KEYPAD6 TX O Keypad 6 communication TX signal output
159 KEYPAD7 TX O Keypad 7 communication TX signal output
160 KEYPAD8 TX O Keypad 8 communication TX signal output
161 VSS — Ground
162 VCC5 — Power supply pin (+3.3 V)
163 SOURCE2 RX I SOURCE 2 communication RX signal input
164 SOURCE3 RX I SOURCE 3 communication RX signal input
165 SOURCE4 RX I SOURCE 4 communication RX signal input