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Table 2. Firmware Checkpoints. (continued)
Checkpoint
Description
Action/ Possible Failing FRU
E19F
Create EEPROM node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1AD
Alternating pattern of E1AD and E1DE
is used to indicate a default catch
condition before the firmware
″
checkpoint
″
word is available
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1B0
Create LPT node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1B1
Create serial node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1B2
Create audio node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1B3
Create 8042 node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1B6
Probe for (ISA) keyboard.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1BA
Enable L2 cache.
See “Unresolved Checkpoint Problems”
on page 85.
E1BB
Set cache parameters for burst.
See “Unresolved Checkpoint Problems”
on page 85.
E1BC
Set cache parameters for 512KB.
See “Unresolved Checkpoint Problems”
on page 85.
E1BD
Probe for (ISA) mouse.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1BE
Create operator panel node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1BF
Create power management node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1C5
Create ISA interrupt controller (PIC)
node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
E1C6
Create DMA node.
Go to MAP 1540: Minimum
Configuration, “Step 1540-24” on
page 81.
Chapter 4. Checkpoints
101
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