Specifications

4–10 Functional Description
Subject to Change – 17 January 1997
ISA Bus Devices
Figure 4–4 AlphaPC 164 ISA Bus Devices
J15 J4 J16
PCI Bus
la<23:17> sd<15:0>
PCI-to-ISA
Bridge
82378ZB
sd<7:0>
Parallel
COM1/2
Combination
Controller
37C935
Transceivers
J35
J33
Flash ROM
1M X 8b
sa<19:0>
sa<15:0>
ubus_data<7:0>
pc164.22
pc164.25
pc164.28
pc164.4
ISA0
ISA1
PC164-05
sa<18:0>
pc164.23 pc164.23
J18
K/M
Config.
Jumpers
pc164.4
Ubus
Decoder
pc164.17
sa<2:0>
ecasaddr<2>
ior,iow
ubus_data<0>
adr19
Diskette