TQFP
PIN #
60
BUFFER
MODE6
I/OD12
NAME
SYMBOL
nACK
DESCRIPTION
low active output from the printer
nAcknowl-
edge/FDC
nDrive
A
indicating that it has received the data and is
ready to accept new data. Bit 6 of the
Printer Status Register reads the nACK
input. Refer to Parallel Port description for
use of this pin in ECP and EPP mode.
Select 1
nDS1
See FDC Pin definition.
58
Paper End/ PE
I/OD12
Another status output from the printer, a
high indicating that the printer is out of
paper. Bit 5 of the Printer Status Register
reads the PE input. Refer to Parallel Port
description for use of this pin in ECP and
EPP mode.
FDC nWrite
Data
nWRDATA
See FDC Pin definition.
57
73
Printer
SLCT
I/OD12
I/OD12
This high active output from the printer
indicates that it has power on. Bit 4 of the
Printer Status Register reads the SLCT
input. Refer to Parallel Port description for
use of this pin in ECP and EPP mode.
Selected
Status/
FDC nWrite
Gate
See FDC Pin definition.
nWGATE
nError/FDC nERROR
A low on this input from the printer indicates
that there is a error condition at the printer.
Bit 3 of the Printer Status register reads the
nERR input. Refer to Parallel Port
description for use of this pin in ECP and
EPP mode.
See FDC Pin definition.
Port Data 0
nHead
Select
nHDSEL
69
68
67
Port Data
0/FDC
PD0
IOP14/IS
IOP14/IS
IOP14/IS
nIndex
nINDEX
PD1
See FDC Pin definition.
Port Data 1
Port Data
1/FDC
nTrack 0
nTRK0
PD2
See FDC Pin definition.
Port Data 2
Port Data
2/FDC
nWrite
nWRTPRT
PD3
See FDC Pin definition.
Port Data 3
Protected
66
64
Port Data
IOP14/IS
IOP14/IS
3/FDC
nRead Disk
Data
nRDATA
PD4
See FDC Pin definition.
Port Data 4
Port Data
4/FDC
nDisk
nDSKCHG
See FDC Pin definition.
Change
63
62
Port Data 5 PD5
IOP14
IOP14/ OD12
Port Data 5
Port Data 6
Port Data
6/FDC
nMotor On
0
PD6
nMTR0
See FDC Pin definition.
Port Data 7
61
Port Data 7 PD7
IOP14
SMSC DS – FDC37N3869
Page 13
Rev. 10/25/2000
SMSC [ SMSC CORPORATION ]
