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