2- Reverse Mode; 3- Pin Assignments For Each Mode - Fenix SM2000 Operation Manual

FENIX IMVICO
Description
Data hold time
Data setup time
STROBE pulse width
READY cycle idle time
BUSY output delay time
Data processing time
ACKNLG pulse width
BUSY release time
ACK cycle idle time
2.4.2- Reverse mode (Data transmission from the printer to the host system)
The transmission of the printer status to the host system is implemented according to the IEEE1284
standard (NIBBLE MODE).

2.4.3- Pin assignments for each mode

Pin Source
1 Host Sys.
2 Host Sys/printer
3 Host Sys/printer
4 Host Sys/printer
5 Host Sys/printer
6 Host Sys/printer
7 Host Sys/printer
8 Host Sys/printer
9 Printer
10 Printer
11 Printer
12 Printer
13 Printer
14 Host Sys.
15
16
17
18 Printer
19-30
31 Host Sys.
32 Printer
33
Symbol
tHold
tSetup
tSTB
tReady
tBUSY
tReply
tACK
tnBUSY
tNext
Compatibility mode
nStrobe
Data0 (LSB)
Data1
Data2
Data3
Data4
Data5
Data6
Data7 (MSB)
nAck
Busy
PError
Selected
nAutofeed
NC
GND
FG
Logic-H
GND
nInit
nFault
GND
SM2000 OPERATION MANUAL
Specification
Min(ns) Max(ns)
750 --
750 --
750 --
0 --
0 500
∞
0
500
10µs
∞
0
0 --
Nibble mode
HostClk
Data0 (LSB)
Data1
Data2
Data3
Data4
Data5
Data6
Data7 (MSB)
PrtClk
PrtBusy/Data3,7
AckDataReq/Data2,6
Xflag/Data1,5
HostBusy
ND
GND
FG
Logic-H
GND
nInit
nDataAvail/Data0,4
ND
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