multiPort: Advanced Digital I/O Ports (aDIO™)

56

Digital I/O Register Set

56

Port 1 Data register is a read/write byte direction

58

Interrupts

58

Advanced Digital Interrupts

58

Event Mode

58

Match Mode

58

Strobe Mode

59

Wake-on-aDIO

59

multiPort: Parallel Port Control

60

multiPort: Floppy Drive

60

AC’97 Audio

60

Ethernet (10/100Base-T and -TX)

60

IDE Controller Configuration

61

Cable Modes

61

Cable Detection

61

Device and Host Mode

61

Host Determination of Cable Type

61

Device Detect

61

Legacy Mode and Native Mode IDE

62

Legacy Mode

62

Native Mode

62

Configuring the ATA/IDE Disk Chip Socket

62

Real Time Clock Control

63

Watchdog Timer Control

64

Thermal Management

65

Thermal Monitor and Thermal Throttling

65

Fan Mode

65

Further Temperature Reduction

65

Power Management

66

Advanced Power Management (APM)

66

Advanced Configuration and Power Interface (ACPI)

66

Power Button Modes

66

Low-Power Wake Options

66

AT vs. ATX Power Supplies

67

ATX Power Supply Signals

67

Reducing Power Consumption

68

Multi-Color LED

69

Reset Status Register

71

User EEPROM

73

Features and Settings That Can Affect Boot Time

74

Quick Boot

74

Add-On Cards With BIOS Extensions

74

VGA Controller

74

Hard Drive Type

74

Monitor Type

74

BDM-610000050 Rev A

: vii

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IBM CMX58886CX user manual BDM-610000050 Rev a Vii