TANDBERG SLR7, Reference Manual, Page: 111 / 118

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Tandberg SLR Reference Manual A-1
App. A. Initialization and Power-on
Selftest Marker Codes
A unique Initialization/Test Marker is defined for each component or part that is initialized or
tested. A Test Marker equals its Activity ID Number . Initialization Markers are defined distinct
from Test Activity IDs starting at 0xC0. 0xFF is defined as the last Initialization Marker .
•
A Marker is written to RAM every time a hardware component is tested or initialized
•
A Marker Code is transmitted on DACI both before and after every initialization - at the
start of each test the Activity ID number is sent and at the end the Execution Status is
reported
This is done for hardware debugging purposes in case of system lock during test or
initialization as a result of hardware errors. It should be possible to read the Initialization
Marker in RAM via DACI or the BDM-connector. The markers are transmitted via the DACI-
interface as soon as DACI is initialized.
A.1. Initialization Marker Codes
The following codes are defined and reported:
Marker Code Description
C0 PROM Checksum Result *)
C1 Initialize DACI *)
C2 Check Reset Source
C3 Initialize POST1 Parameters/Result Area
C4 Initialize PES Module
C5 Copy EEPROM to RAM, initialize EEPROM if empty
C6 Initialize Debugger Module
C7 Initialize Flash Upgrade Module
C8 Read Switches and Jumpers
C9 Initialize SCSI
D0 Initialize DPC Generic Part
D1 Initialize Internal Communication
D2 Initialize Media Access Executive
D3 Initialize Data Path Management
D4 Initialize part of PMC task
D5 Initialize Interrupt
D6 Initialize Utility Module
D7 Initialize Adaptive PRML Module
E0 Initialize Diagnostic Module
FF Last Marker
NOTE *):
The marker is NOT sent across DACI. Updated in RAM only!