User`s manual

4.2 ISA Devices
4.2 ISA Devices
Figure 4–3 shows the AlphaPC64 ISA bus implementation with peripheral
devices and connectors. Also shown is the utility bus (Ubus) with system
support devices.
Figure 4–3 ISA Devices
LJ04141A.AI5
PCI-to-ISA
Bridge
82378ZB
PCI Bus
ISA
Slot
0
Combo
Chip
87312
Transceiver
ISA
Slot
1
ISA
Slot
2
TOY
1287
Keyboard/
Mouse
8242
sa<18:0>sa<9:0>
sa<19:0>
sa<2>
sd<7:0>
la<23:17>
sd<15:0>
ubus<7:0>
Diskette J24
Parallel J25
COM1 J32
COM2 J30
IDE J26
flash_adr19
J17 J18 J19
Flash ROM
1M x 8
86.5%
4–6 Functional Elements