CD1284 Datasheet, PDF (87/176 Pages) Intel Corporation – IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports

IEEE 1284-Compatible Parallel Interface Controller — CD1284
Figure 17 on page 89 depicts a simplified interface example.
Figure 15. Intel^ 80x86 Family Interface
80x86
SYSTEM
ADDRESS
A[23:7]
ADDRESS
DECODE
LOGIC
DATA
IOR*
IOW*
IRQ
INPUTS
A[6:0]
DMA
CONTROL
READY
WAIT-STATE
GENERATION
LOGIC
CD1284
CS*
SVCACKR*
SVCACKT*
SVCACKM*
SVCACKP*
A[6:0]
DB[15:0]
DS*
R/W*
SVCREQR*
SVCREQT*
SVCREQM*
SVCREQP*
DMAREQ*
DMAACK*
DTACK*
Datasheet
87