Major Chips Description
2-53
Table 2-6
FDC37C67 Pin Descriptions
Pin No./QFP
Pin Name
Type
Symbol
Buffer Type
3
Maor On D
1
nMTR0
O224/OD24
6
Motor On 1
1
nMTR1
O224/OD24
15
Write Protected
1
nWRTPRT
IS
14
Track O
1
nTRKO
IS
13
Index Pulse Input
1
nINDEX
IS
1
Drive Density Select O
1
DRVDENO
O224/OD24
2
Drive Density Select 1 /IR Mode
Select/lRRX3
1
DRVDEN1/IR
MODE/ IRRX3
O224/OD24/O24/I
Serial Port 1 Interface(8)
84
Receive Serial Data 1
1
RXD1
I
85
Transmit Serial Data 1
1
TXD1
O4
87
Request to Send 1
1
nRTS1/SYSOP
O4/I
88
Clear to Send 1
1
nCTS 1
I
89
Data Terminal Ready 1
1
nDTR 1
O4
86
Data Set Ready 1
1
nDSR 1
I
91
Data Carrier Detect 1
1
nDCD1
I
90
Ring Indicator 1
1
nRI1
I
Serial Port 2 Interface (8)
95
Receive Serial Data 2/lnfrared Rx
1
RXD2/lRRX
I
96
Transmit Serial Data 2/lnfrared
Tx
1
TXD2/lRTX
O24
98
Request to Send 2/Sys Addr 12/
Parallel IRQ 5
1
nRTS2/SA12/
IRQ5
O4/I/O24/OD24(Note0
)
99
Clear to Send 2/Sys Addr 13/
Parallel IRQ 6
1
nCTS2/SA 13/
IRQ6
I/I/O24/OD24(Note0)
100
Data Terminal Ready/Sys Addr
14/ Parallel IRQ 7
1
nDTR2/SA 14/
IRQ7
O4/I/O24/OD24(Note0
)
97
Data Set Ready 2/Sys Addr 15/
Parallel IRQ 1 O/nSMI
1
nDSR2/SA1 5/
IRQ10/nSMI
I/I/O24/OD24(Note0)
94
Data Carrier Detect 2/8042 P12/
Parallel IRQ 1 1
1
nDCD2/P12/
IRQ11
I/IO24/O24(Note0)
92
Ring Indicator 2/8042 P1
6/Parallel IRQ 12
1
nRI2/P16/ IRQ12
I/IO24/O24/OD24
(Note0)
Parallel Port Interface {17)
68:75
Parallel Port Data Bus
8
PD[0:7]
IO24
67
Printer Select
1
nSLCTIN
OD24/O24
66
Initiate Output
1
nlNIT
OD24/O24
82
Auto Line Feed
1
nALF
OD24/O24
83
Strobe Signal
1
nSTROBE
OD24/O24
79
Busy Signal
1
BUSY
I
80
Acknowledge Handshake
1
nACK
I
Summary of Contents for 390 Series
Page 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Page 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Page 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Page 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Page 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Page 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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