5000 Series User’s Manual
G-2
GEK-99044
LEGACY PARALLEL HARDWARE STRAP DEFINITIONS
Strap meanings are the same for Centronics, DP (Short) and DP
(Long); however, the straps are set individually for each. If there is a
Centronics and DP (Short) both installed each may be setup
separately.
Table 1
I/F Straps
H Bits
01-32
Meaning if Enabled
Meaning if Disabled
01
Prime High = Buffer Clear.
Prime Low = Buffer Clear.
02
Interrupt on all Control Codes.
Interrupt disabled on all Control Codes, except LF, VT,
FF, CR, DC1 and DC3.
03
DEL does not cause an Interrupt.
DEL causes an Interrupt.
04
DEL does not cause Prime.
DEL causes Prime.
05
Reserved.
Reserved.
06
Reserved.
Reserved.
07
Underline character treated as CR.
Underline character printed.
08
PI Lead causes Interrupt.
PI Lead does not cause Interrupt.
09
ACK lead does not reflect
ONLINE/LOCAL status. 05 must be
enabled.
ACK lead reflects ONLINE/LOCAL status.
10
Character conversion to space
enabled. (See 41-48.)
Character conversion to space disabled.
11
CR not decoded.
CR will generate an Interrupt.
12
FF not decoded.
FF will generate an Interrupt.
13
LF not decoded.
LF will generate an Interrupt.
14
VT not decoded.
VT will generate an Interrupt.
15
DC3 not decoded.
DC3 will generate an Interrupt.
16
DC1 not decoded.
DC1 will generate an Interrupt.
17
Busy does not reflect ACK.
Busy reflects ACK.
18
Busy/Demand per character.
No Busy/Demand per character.
19
No software control of Busy.
Software control of busy.
20
Busy does not reflect
(ONLINE/LOCAL) FAULT/PO status.
Busy reflects (ONLINE/LOCAL) FAULT/PO status.
21
Busy does not reflect (FAULT)
ONLINE/LOCAL status.
Busy reflects (FAULT) ONLINE/LOCAL status.
22
Busy does not reflect (PO)
ONLINE/LOCAL/PO status.
Busy reflects (PO) ONLINE/LOCAL/PO status.
23
ACK does not reflect PO.
ACK reflects PO.
24
ACK does not reflect FAULT.
ACK reflects FAULT.
25
Data leads 0-7 are active high.
Data leads 0-7 are active low.
26
Busy is active high.
Busy is active low.
27
PI is active high.
PI is active low.
28
PI is enabled.
PI is disabled.
29
STB is active high.
STB is active low.
30
SELECT is active high.
SELECT is active low.
31
PO is active high.
PO is active low.
32
FAULT is active high.
FAULT is active low.