ucb1500 NXP Semiconductors, ucb1500 Datasheet - Page 6

• Manufacturer Part Number: ucb1500
• Description: Pci To Ac97 Bridge/host Controller
• Manufacturer: NXP Semiconductors

Table 4:
Philips Semiconductors
9397 750 07443
Product specification
31-24
Device ID = 3400
Modified by BIOS via writing to 42h or EEPROM auto
loading
Status = 0290
Class Code = 070300
Simple communication controller, generic modem.
Modified by BIOS via writing to 45h or EEPROM auto loading.
BIST = 00
I/O port Base Address [31:16]
Hardwired to 0000h
Reserved.
Subsystem ID = 3400
Modified by BIOS via writing to 6Eh or EEPROM auto
loading
Reserved
Reserved
Reserved
Reserved
Device ID Write = 3400
Class Code Write = 070300
Reserved
Reserved
Reserved
Reserved
PMC Write = C801
Subsystem ID Write = 3400
Function 0 configuration registers
7.2.1 Function 0 configuration registers
7.2 Configuration registers
23-16
Header Type
If multifunction,
header type = 80h,
otherwise 00h
UCB1500 supports the PCI configuration cycle to control the UCB1500 access. It
sets up the PCI configuration bits and the UCB1500 IO port address. The following
table shows the supported PCI registers and their default values. Some of the
registers are programmable through the EEPROM interface (See EEPROM section
for details).
Remark: All registers are read/write, unless specified otherwise. Shaded registers
are read-only. A register with (S) means it is powered by V
sticky or otherwise stated, all read/write registers defaults to zero at PCI reset. All
reserved or unimplemented registers are hardwired to 0.
Rev. 03 — 7 July 2000
15-8
Vendor ID = 1131
Modified by BIOS via writing to 40h or EEPROM auto
loading
Command = 0000
Latency Timer = 00
I/O port Base Address[15:0] = 0001
Subsystem Vendor ID = 1131
Modified by BIOS via writing to 6Ch or EEPROM auto
loading
Interrupt Pin = 01
Vendor ID Write = 1131
Reserved
Subsystem Vendor ID Write = 1131
7-0
Revision ID = 01
Cache Line Size = 00
Capability Pointer = 80
Interrupt Line = 00
Revision ID = 01
EEPROM Status = 00
Test Register = 00
PCI to AC97 bridge/host controller
AUX
© Philips Electronics N.V. 2000. All rights reserved.
and is sticky. Unless
UCB1500
Address
00h
04h
08h
0Ch
10h
14h-2Bh
2Ch
30h
34h
38h
3Ch
40h
44h
48h
4C-4Fh
50
54-67h
68h
6Ch
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