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