Chapter 1
Introduction
page 1 - 12
Excalibur Systems
The Header Type register consists of two fields:
Bits 00–06 define the format for bytes 10 H – 3F H of the device configuration
header
Bit 07 = 0 established that the PCI controller is a single function PCI device.
The Built-In Self-Test register is not implemented in the
DAS-429PCI/Mx
.
1.5.9
Header Type Register (HDR).
Address:
0E (H)
Power-up value:
00 H
Boot-load:
External nvRAM offset 04E H
Attribute:
Read only
Size:
8 bits
Bit
Description
07
0 PCI Controller is a single function PCI device
00–06
Always returns 0
Header Type Register
1.5.10
Built-In Self-Test Register (BIST)
Address:
0F (H)
Power-up value:
00 H
Boot-load:
External nvRAM/EPROM offset 04F H
Attribute:
Read only: bits 07 and 00–05
Write only: bit 06 as PCI bus
Size:
8 bits
Bit
Bit Name
Description
07
BIST Capable (RO)
Always returns 0
06
Start BIST (WO)
Always set to 0
04–05
Reserved
Always returns 0
00–03
User Defined Completion
Code (RO)
Always returns 0
Built-in Self-Test Register
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