ucb1500 NXP Semiconductors, ucb1500 Datasheet - Page 9

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

Philips Semiconductors
9397 750 07443
Product specification
[0E]: Header Type (read only):
[0F]: BIST (read only):
[10]: I/O port base address
Table 8:
[2C-2F] Subsystem ID/Subsystem Vendor ID (read only):
EEPROM interface or through register 6E-6Ch. Default Value = 3400h/1131h.
[34] Capability pointer (read only):
registers.
[3C]: Interrupt Register
Table 9:
[40-43] Device ID Write / Vendor ID Write:
Device ID and Vendor ID registers. Writing to this register will update the original
Device ID and Vendor ID registers (offset 0h - 3h).
[44h]: Revision ID:
[45-47] Class code Write:
Writing to this register will update the original Class Code registers (offset 9h-Bh).
[48]: EEPROM status register /Misc
Table 10: EEPROM Status register bit description
Bit
31-16(r)
15-4
3-1
0
Bit
15:8
7:0
Bit
0
I/O Port Base Address register bit description
Interrupt Register bit description
Description
I/O port Base address
A[31:16] always 0.
I/O port Base address
A[15:4]; programmable address space for control registers.
Always 000b
Always 1b
Description
Interrupt pin (read only)
Always 01h; interrupt pin connected to INTA.
Interrupt line
Interrupt line routing information.
Description
EEPROM autoload status
If set, EEPROM autoload cycle is in progress.
Rev. 03 — 7 July 2000
Same as offset 08h.
Always 0; no built-in test capability.
This register contains a copy of the Class Code registers.
If multifunction device, value is 80h otherwise 00h.
80h points to start offset of power management
This register contains a copy of the
PCI to AC97 bridge/host controller
© Philips Electronics N.V. 2000. All rights reserved.
Programmable through
UCB1500
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