PC97317 datasheet(10/272 Pages) NSC

10 / 272 page

Table of Contents

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6.4.3

Hardware Operation .................................................................................................. 145

6.5

ECP MODE REGISTERS ........................................................................................................ 145

6.5.1

Accessing the ECP Registers .................................................................................... 146

6.5.2

Second Level Offsets ................................................................................................ 146

6.5.3

ECP Data Register (DATAR) ..................................................................................... 147

6.5.4

ECP Address FIFO (AFIFO) Register ....................................................................... 147

6.5.5

ECP Status Register (DSR) ....................................................................................... 147

6.5.6

ECP Control Register (DCR) ..................................................................................... 148

6.5.7

Parallel Port Data FIFO (CFIFO) Register ................................................................. 148

6.5.8

ECP Data FIFO (DFIFO) Register ............................................................................. 148

6.5.9

Test FIFO (TFIFO) Register ...................................................................................... 149

6.5.10

Configuration Register A (CNFGA) ........................................................................... 149

6.5.11

Configuration Register B (CNFGB) ........................................................................... 149

6.5.12

Extended Control Register (ECR) ............................................................................. 150

6.5.13

ECP Extended Index Register (EIR) ......................................................................... 151

6.5.14

ECP Extended Data Register (EDR) ......................................................................... 152

6.5.15

ECP Extended Auxiliary Status Register (EAR) ........................................................ 152

6.5.16

Control0 Register ....................................................................................................... 152

6.5.17

Control2 Register ....................................................................................................... 152

6.5.18

Control4 Register ....................................................................................................... 153

6.5.19

PP Confg0 Register ................................................................................................... 153

6.6

DETAILED ECP MODE DESCRIPTIONS ............................................................................... 154

6.6.1

Software Controlled Data Transfer

(Modes 000 and 001) ................................................................................................ 154

6.6.2

Automatic Data Transfer

(Modes 010 and 011) ................................................................................................ 154

6.6.3

Automatic Address and Data Transfers (Mode 100) ................................................. 156

6.6.4

FIFO Test Access (Mode 110) .................................................................................. 156

6.6.5

Configuration Registers Access

(Mode 111) ................................................................................................................ 156

6.6.6

Interrupt Generation .................................................................................................. 156

6.7

PARALLEL PORT REGISTER BITMAPS ............................................................................... 157

6.7.1

EPP Modes ................................................................................................................ 157

6.7.2

ECP Modes ............................................................................................................... 158

6.8

PARALLEL PORT PIN/SIGNAL LIST ...................................................................................... 160

7.0

Enhanced Serial Port with IR - UART2 (Logical Device 5)

7.1

FEATURES .............................................................................................................................. 161

7.2

FUNCTIONAL MODES OVERVIEW ....................................................................................... 161

7.2.1

UART Modes: 16450 or 16550, and Extended .......................................................... 161

7.2.2

Sharp-IR, IrDA SIR Infrared Modes ........................................................................... 161

7.2.3

Consumer IR Mode ................................................................................................... 161

7.3

REGISTER BANK OVERVIEW ............................................................................................... 161

7.4

UART MODES – DETAILED DESCRIPTION .......................................................................... 162

7.4.1

16450 or 16550 UART Mode ..................................................................................... 162

7.4.2

Extended UART Mode ............................................................................................... 163

PC97317 Datasheet(PDF) 10 Page - National Semiconductor (TI)

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