Motorola DSP56301 - Manual (Page 138)

Host Port Pins
6 -20 DSP56301 User’s Manual
Figure 6-3. Connection to 16-Bit ISA/EISA Data Bus
HDBEN
HDBDR
BUF
HA10
HAEN
HD[15–0]
HTA
HWR
HRD
HSAK
HIRQ
HDRQ
HDAK
DSP56301
HRST
HI32
D[15–0]
SBHE
CHRDY
DRQ
IOWC
IORC
IO16
AEN
IRQ
DAK
RESDRV
ISA
Host
(master) (slave)
HA9 SA[0]
HA[8–3] SA[9–4]
HA[2–0] SA[3–1]
HBS
Vcc
*
*
*
* Open Collector
HD[23–16]
HP31
Vcc
HP32
Vcc
HP19
Vcc
Note: The HI32 can be externally buffered to drive the current required by the ISA/EISA standard. HI32
inputs should be externally buffered if the other ISA/EISA agents are not “3 Volt friendly” as defined
in the PCI specifications.