402-00005-00
Registers
3–2
Rev 02; February 8, 2002
PCI Configuration Registers
These registers are loaded by a boot PROM with information about the PCVisionplus, (memory size, register size,
type of device, etc.) which the PCI-bus host uses in conjunction with information from all other PCI devices in the
system to determine an optimum configuration. Access to these register is accomplished through special configura-
tion cycles. A separate base address is not required for this register set.
0x0–0x1
0x2–0x3
0x4–0x5
0x6–0x7
0x8
0x9–0xB
0xC
0xD
0xE
0xF
0x10–0x13
0x14–0x17
0x18–0x1B
Vendor ID (VID)
Device ID (DID)
PCI Command (PCICMD)
PCI Status (PCISTAT)
Revision ID (RID)
Class Code (CLCD)
Master Latency Timer (LAT)
Header Type (HDR)
Built-in Self Test (BIST)
Base Address 0 (BADR0)
Base Address 2 (BADR2)
0x1C–0x1F
0x20–0x23
0x24–0x27
0x28–0x2F
0x30–0x33
0x34–0x3B
0x3C
0x3D
Base Address 3 (BADR3)
Base Adddress 4 (BADR4)
Reserved
Expansion ROM Base Address (EXROM)
Reserved
Interrupt Line (INTLN)
Interrupt Pin (INTPIN)
Base Address 5 (BADR5)
Page #
Base Address 1 (BADR1)
Cache Line Size (CALN)
0x3E
0x3F
Minimum Grant (MINGNT)
Maximum Latency (MAXLAT)
0x40–0xFF
Reserved
3–6
3–6
3–7
3–9
3–11
3–11
3–11
3–11
3–12
3–12
3–12
3–13
3–13
3–14
3–14
3–15
3–15
3–15
3–16
3–16
3–16
Address offset
Figure 3–1. PCI Configuration Register Map
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