Force SPARC/CPCI-520G, Technical Reference Manual

Page: 92 / 134

Ethernet and EBus2 Devices – PCIO Hardware Description
Page 78 SPARC/CPCI-52x(G)
PCIO EBus2
DMA channels Additionally, 4 DMA channels for floppy, parallel interface, audio in,
and audio out are provided by the EBus2 interface. Each of the 4 DMA
channels supports 128-byte deep FIFOs for data stream buffering.
F110.0000
16
…F11F.FFFF
16
reserved 2
F120.0000
16
…F12F.FFFF
16
“Audio Interface – CS4231A” on page 84 3
F130.0000
16
…F13F.FFFF
16
“Keyboard/Mouse, FDC and Parallel Interface – Super I/O”
on page 81 4
F140.0000
16
…F14F.FFFF
16
“Serial Interfaces – SAB 82532” on page 80 5
F150.0000
16
…F15F.FFFF
16
reserved 6
F160.0000
16
…F16F.FFFF
16
“System Configuration Registers – SCR” on page 85 7
F170.0000
16
…F17F.FFFF
16
EBus2 controller configuration registers n.a.
Table 37 EBus2 memory map in the PCI bus 4 GByte address space (cont.)
PCI addr. range Description
EBus_
CS#
Table 38 PCIO EBus2 DMA channels
PCIO EBus2 DMA
channel no.
Associated device
0 Parallel interface (see page 81)
1 Audio playback (out) (see page 84)
2 Audio capture (in) (see page 84)
3 Floppy disk controller (see page 81)