— 43 —
Pin No.
Name
I / O
Function
67
P7
I
not used
68
TXD3
O
not used
69
RXD3
I
not used
70
TXD
I
Terminal for serial data transfer (both PC LINK and MODEM)
71
RXD
O
Terminal for serial data transfer (both PC LINK and MODEM)
73
VDD1
I
Power supply to Gate array (5 V)
74
RS
O
RS (Request signal to PC for sending data)
75
ER
O
ER (Request signal to PC for operation of PC)
76
P4
O
Control signal (standby) to line receiver/driver IC (IC501)
77
PORT3
O
Wait signal to CPU
78
P2
I
Reset terminal to Gate array (from reset key)
79
A21
I
Address bus from CPU
80
CD
I
CD (Information signal from PC to BN Unit (Detection of carrier))
81
VSS
Ground for Gate array
82
V5IOIS16B
I
CS (OK/NG signal from MODEM in response to RS)
83 ~ 89
A14 ~ A20
I
Address bus from CPU
90
VDD2
I
VDD2
91
VSS
Ground for Gate array
92
P1
I
Detection of low 5 V power (detection point:4.5 V)
93
P0
O
Non maskable interrupt signal to CPU
94 ~ 101
A6 ~ A13
I
Address bus from CPU
102
VSS
Ground for Gate array
103 ~ 108
A0 ~ A5
I
Address bus from CPU
109
VDD1
I
Power supply to Gate array (5 V)
110
DR
I
DR (OK signal from PC in response to ER)
111
CS
I
CS (OK/NG signal from PC in response to RS)
112
RD
I
Data to send from PC to BN Unit passing through the cradle
113
SD
O
Data to send from BN Unit to PC passing through the cradle
114
V5A19
O
not used
115
V5A14
O
Address bus to ROM for MODEM
116
V5A18
O
Address bus to ROM for MODEM
117
VSS
Ground for Gate array
118
V5A13
O
Address bus to ROM for MODEM
119
V5A17
O
Address bus to ROM for MODEM
120
V5A8
O
Address bus to ROM for MODEM
121
V5IOWRB
O
Write signal to ROM for MODEM
122 ~ 124
V5A9 ~ V5A11
O
Address bus to ROM for MODEM
125
INT1
O
Interrupt signal from CPU
126
VDD2
I
Power supply to Gate array (3 V)
127
VSS
Ground for Gate array
128
V5D15
I/O
not used
129
V5CE1B
O
Chip enable signal to ROM for MODEM
130
V5D14
I/O
not used
131
V5D7
I/O
Data bus for ROM of MODEM
132
V5IORDB
O
Output enable signal to ROM for MODEM
133
V5D13
I/O
not used
134
CD1B
I
not used
135
V5D6
I/O
Data bus for ROM of MODEM
136
V5D12
I/O
not used
137
VDD1
I
Power supply to Gate array (5 V)
138
VSS
Ground for Gate array
139
V5D5
I/O
Data bus for ROM of MODEM
140
V5D11
I/O
not used
141
V5D4
I/O
Data bus for ROM of MODEM
142
V5D3
I/O
Data bus for ROM of MODEM
143
V5OEB
O
not used
144
V5CE2B
O
not used
Summary of Contents for BN-10
Page 1: ...R BN 10 ZX 456 BN 20 ZX 457 NOV 1997 without price BN 20 ...
Page 49: ... 49 Main block PCB ASSY A140806 2 5 FM3416 Gate array ...
Page 51: ... 51 Main block PCB ASSY A140806 4 5 LINE DRIVER RECEIVER ...
Page 52: ... 52 Main block PCB ASSY A140806 5 5 AC Adapter Batteries ...
Page 55: ... 55 Display block LCD ASSY A140809 A140814 2 3 LCD common terminal driver ...
Page 56: ... 56 Display block LCD PCB ASSY A140809 A140814 3 3 LCD segment terminal driver ...
Page 57: ... 57 Cradle A140805 BN 10 20 PCB Z456 1 shielded ...
