3 System Board (P/Ns
Principal Components and Features
Function | Features |
|
|
ISA bus controller | ❒ Fully compatible with ISA bus standard |
(for SB82371FB only) | ❒ Supports asynchronous ISA bus operation up to 16 MHz |
| ❒ Integrates: |
| ❒ two 82C37A DMA controllers |
| ❒ two 82C59A interrupt controllers |
| ❒ 82C54 timer |
| ❒ hidden ISA refresh controller |
| ❒ support for BIOS |
| ❒ port A, B and NMI logic |
|
|
Fast IDE controller | ❒ Supports PIO and Bus Master IDE |
(for SB82371FB only) | ❒ Supports up to Mode 4 timings |
| ❒ Up to 22 MB/s transfer rate |
| ❒ |
|
|
System Board Configuration Switches
The system board configuration switches are used to configure certain aspects of the computer.
Example of system board switch settings
The system board switches used for configuring the PC are summarized in the following table.
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