PC97338 datasheet(217/221 Pages) NSC

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11-bit address mode

In this mode, the Chip decodes address lines

A0-A10, A11-A15 are masked to 1, and

UART2 is a fully featured 16550 UART. The

mode is configured during reset, via the CFG0

strap pin.

16-bit address mode

In this mode, the Chip decodes address lines

A0-A15 and SCC2 is a 16550 UART with

SIN2/SOUT2 interface signals only. The mode

is configured during reset, via the CFG0 strap

pin.

AFIFO

Address FIFO for the parallel port in Extended

Capabilities Port mode.

ASC

The register that configures the Advanced Su-

per I/O chip, i.e., the PC87338/VLJ or the

PC87338VJG.

ASK-IR

Amplitude Shift Keying Infrared.

BGD(H) and BGD(L)

Baud Generator Divisor Ports (High and Low

bytes) for the SCCs.

BSR

Bank Selection Register for the SCCs.

CCR

Configuration Control Register of the Floppy

Disk Controller (FDC).

CFIFO

Parallel port data FIFO in Extended Capabili-

ties Port (ECP) mode.

CNFGA and CNFGB

Configuration registers A and B for the parallel

port in Extended Capabilities Port mode.

CEIR Mode

This IR mode supports all four protocols cur-

rently used in remote-controlled home enter-

tainment equipment. Also called TV-Remote

mode.

CS0HA

The Chip Select 0 High Address register.

CS0LA

The Chip Select 0 Low Address register.

CS1CF

The Chip Select 1 Configuration register.

CS1HA

The Chip Select 1 High Address register.

CS1LA

The Chip Select 1 Low Address register.

CTR

Control Register of the parallel port.

DASK-IR

Digital Amplitude Shift Keying Infrared.

Data

The Data register contains the data in the reg-

ister indicated by the corresponding Index reg-

ister.

DATAR

Data Register for the parallel port in Extended

Capability Port mode.

DCR

Data Control Register for the parallel port in

Extended Capabilities Port mode.

Device

Any circuit that performs a specific function,

such as a parallel port.

DIR

Digital Input Register of the Floppy Disk Con-

troller (FDC).

DOR

Digital Output Register of the Floppy Disk

Controller (FDC).

DSR

Data rate Select Register of the Floppy Disk

Controller (FDC) and the data Status Register

in Extended Capabilities Port mode.

DTR

Data Register of the parallel port.

EAR

Extended Auxiliary Register of the parallel

port in Extended Capabilities Port (ECP)

modes.

ECP

Extended Capabilities Port.

ECR

Extended Control Register for the parallel port

in Extended Capabilities Port mode.

EDR

Extended Data Register for the parallel port in

extended Capabilities Port (ECP) modes.

EIR

Two expressions:

Extended Index Register of the parallel port

Extended Capabilities Port (ECP) modes.

Event Identification Register for SCC1 and

SCC2 for read cycles.

EPP

Enhanced Parallel Port.

Glossary

PC97338 Datasheet(PDF) 217 Page - National Semiconductor (TI)

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