User`s guide
Table Of Contents
- Contents
- Tables
- Preface
- Introduction
- Getting Started
- 2.1 Overview
- 2.2 Hardware Required
- 2.3 Hardware Debug Features
- 2.4 Setting Up the SROM Serial Port Connection
- 2.5 Starting and Running the Mini-Debugger
- 2.6 Sample Session on the EB64
- 2.7 Sample Session on the EB64+ and the AlphaPC 6...
- 2.8 Sample Session on the EB66 and EB66+
- 2.9 Sample Session on the EB164
- 2.10 Sample Session on the AlphaPC 164
- 2.11 Sample Session on the AlphaPC 164LX
- 2.12 Onboard Machine Check Handler
- SROM Mini-Debugger Command Set
- Support, Products, and Documentation
- Index
Getting Started 2–7
Sample Session on the EB64
2.6 Sample Session on the EB64
For the EB64 and the EB64+, the BIU_CTL register is cleared when you start the
mini-debugger. Before any memory command can be executed on the EB64, the
BIU_CTL register and the EB64 system register must be set to some meaningful
value.
Note: To avoid damaging your hardware, bit 2 (OE) of the BIU_CTL is set at
power-on and whenever the BIU_CTL register is written (from the dc
bctl command).
To specify that the Bcache is on, use the following values:
BIU_CTL : 0000000E 2000E445
EB64 system register: address 00000002 00000000
data 00C40000 (for 32MB memory)
To specify that the Bcache is off, use the following values:
BIU_CTL : 0000000E 2000E444
EB64 system register: address 00000002 00000000
data 00C40000 (for 32MB memory)
You also need to initialize the clocks, timers, and memory refresh on the EB64. The
following addresses should contain the specified data:
Address Data
00000002 C0007600 00000001
00000002 C0007680 0000BF00
00000002 C0007600 00000006
00000002 C0007680 00000000
00000002 C0007600 00000005
00000002 C0007680 00000400
00000002 C0002180 74000000
00000002 C0002080 00001100
00000002 C0002080 00000000