CIRCC Datasheet, PDF (6/70 Pages) SMSC Corporation – Consumer Infrared Communications Controller

NAME
D0-D7
A0-A2
nIOR
nIOW
AEN
DRQ
nDACK
TC
IRQ
IOCHRDY
nSRDY
SIZE (BITS)
8
3
1
1
1
1
1
1
1
1
1
Table 4 - HOST Signals
TYPE
DESCRIPTION
Bi-directional
Host Data Bus
Input
CIrCC Register Address Bus
Input
ISA I/O Read
Input
ISA I/O Write
Input
ISA Address Enable
Output
DMA Request
Input
ISA DMA Acknowledge
Input
ISA DMA Terminal Count
Output
Interrupt Request
Output
ISA I/O Channel Ready
Output
ISA Synchronous Ready (Zero Wait State)
6