HP XM600 hp kayak xm600 series 2, technical reference manual for desktop and m - Page 61

The Super I/O Controller (NS 87364), Serial / Parallel, Communications Ports, Keyboard and Mouse

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Page 61 highlights

2 System Board The Input/Output Controller Hub (82801AA) The Super I/O Controller (NS 87364) The Super I/O chip (NS 87364) provides the control for two FDD devices, two serial ports, one bidirectional multi-mode parallel port, and a keyboard and mouse controller. Device Ultra I/O Index 2Eh Data 2Fh Serial / Parallel Communications Ports The 9-pin serial ports (whose pin layouts are depicted on page 144) supports RS-232-C and are buffered by 16550A UARTs, with 16-Byte FIFOs. They can be programmed as COM1, COM2, COM3, COM4, or disabled. The 25-pin parallel port (also depicted on page 145) is Centronics compatible, supporting IEEE 1284. It can be programmed as LPT1, LPT2, or disabled. It can operate in the four following modes: Ì Standard mode (PC/XT, PC/AT, and PS/2 compatible). Ì Bidirectional mode (PC/XT, PC/AT, and PS/2 compatible). Ì Enhanced mode (enhanced parallel port, EPP, compatible). Ì High speed mode (MS/HP extended capabilities port, ECP, compatible). FDC The integrated floppy disk controller (FDC) supports any combination of two of the following: tape drives, 3.5-inch flexible disk drives, 5.25-inch flexible disk drives. It is software and register-compatible with the 82077AA, and 100% IBM-compatible. It has an A and B drive-swapping capability and a non-burst DMA option. Keyboard and Mouse Controller The computer has an 8042-based keyboard and mouse controller. The connector pin layouts are shown on page 143. 61

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61
2
System Board
The Input/Output Controller Hub (82801AA)
The Super I/O Controller (NS 87364)
The
Super I/O
chip (NS 87364) provides the control for two FDD devices,
two serial ports, one bidirectional multi-mode parallel port, and a keyboard
and mouse controller.
Serial / Parallel
Communications Ports
The 9-pin serial ports (whose pin layouts are depicted on
page 144
)
supports RS-232-C and are buffered by 16550A UARTs, with 16-Byte FIFOs.
They can be programmed as COM1, COM2, COM3, COM4, or disabled.
The 25-pin parallel port (also depicted on
page 145
) is Centronics
compatible, supporting IEEE 1284. It can be programmed as LPT1, LPT2, or
disabled. It can operate in the four following modes:
Standard mode (PC/XT, PC/AT, and PS/2 compatible).
Bidirectional mode (PC/XT, PC/AT, and PS/2 compatible).
Enhanced mode (enhanced parallel port, EPP, compatible).
High speed mode (MS/HP extended capabilities port, ECP, compatible).
FDC
The integrated
floppy disk controller
(FDC) supports any combination of
two of the following: tape drives, 3.5-inch flexible disk drives, 5.25-inch
flexible disk drives. It is software and register-compatible with the 82077AA,
and 100% IBM-compatible. It has an A and B drive-swapping capability and
a non-burst DMA option.
Keyboard and Mouse
Controller
The computer has an 8042-based keyboard and mouse controller. The
connector pin layouts are shown on
page 143
.
Device
Index
Data
Ultra I/O
2Eh
2Fh