SCD1283 INTEL [Intel Corporation], SCD1283 Datasheet - Page 30

• Manufacturer Part Number: SCD1283
• Description: IEEE 1284-Compatible Parallel Interface
• Manufacturer: INTEL [Intel Corporation]

CD1283 — IEEE 1284-Compatible Parallel Interface
Figure 5. Interrupt Generation Logic (Continued)
30
(PIR[6])
(PFSR[0])
PPort
DataErr
(write to non-empty
DMAwrerr (DER[7])
HR1wrerr (DER[3])
(DMAACK* w/o
DMAREQ*)
HR1)
(PFSR[1])
OneChar
Pipeline
(PIR[5])
DMArderr (DER[6])
HR1rderr (DER[2])
(Read from empty
(DMAACK* w/o
DMAREQ*)
(PFSR[5])
HR1))
Timeout
Bufwrerr (DER[5]) (write to
non-empty DMABUF)
(Write to non-empty
HR2wrerr (DER[1])
HR2)
Interface in forward direction, PFHR2 full,
Bufrderr (DER[4]) (Read
(Read from empty HR2)
from empty DMABUF)
HR2rderr (DER[0])
interface is in forward direc-
Stale (PFSR[3]) is set and, if
Timeout (PFSR[5]) is set.
(PFCR[1])
(PFCR[4])
tion, the FIFO is empty.
ErrEn
IntEn
PFHR1 empty, and
OneChar
(PFSR[1])
Timeout
(PFSR[5])
Pipeline
(PIR[5])
Datasheet
SRP
(SVRR[3])
DataErr
(PFSR[0])
PPireq
(PIR[7])