pc87317vul National Semiconductor Corporation, pc87317vul Datasheet - Page 9

• Manufacturer Part Number: pc87317vul
• Description: Pc87317vul/pc97317vul Superi/o Plug And Play Compatible With Acpi Compliant Controller/extender
• Manufacturer: National Semiconductor Corporation

6.0
5.8
Parallel Port (Logical Device 4)
6.1
6.2
6.3
6.4
5.7.7
5.7.8
5.7.9
5.7.10
5.7.11
5.7.12
5.7.13
5.7.14
5.7.15
5.7.16
5.7.17
5.7.18
5.7.19
5.7.20
5.7.21
5.7.22
5.7.23
5.7.24
5.7.25
EXAMPLE OF A FOUR-DRIVE CIRCUIT ............................................................................... 136
PARALLEL PORT CONFIGURATION .................................................................................... 137
6.1.1
6.1.2
6.1.3
STANDARD PARALLEL PORT (SPP) MODES ...................................................................... 137
6.2.1
6.2.2
6.2.3
6.2.4
ENHANCED PARALLEL PORT (EPP) MODES ...................................................................... 141
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
6.3.8
6.3.9
6.3.10
6.3.11
EXTENDED CAPABILITIES PARALLEL PORT (ECP) ........................................................... 145
6.4.1
6.4.2
The MODE Command ............................................................................................... 119
The NSC Command .................................................................................................. 121
The PERPENDICULAR MODE Command ............................................................... 121
The READ DATA Command ..................................................................................... 122
The READ DELETED DATA Command .................................................................... 124
The READ ID Command ........................................................................................... 125
The READ A TRACK Command ............................................................................... 126
The RECALIBRATE Command ................................................................................. 127
The RELATIVE SEEK Command .............................................................................. 127
The SCAN EQUAL, the SCAN LOW OR EQUAL and the SCAN HIGH OR EQUAL
Commands ................................................................................................................ 128
The SEEK Command ................................................................................................ 129
The SENSE DRIVE STATUS Command .................................................................. 129
The SENSE INTERRUPT Command ........................................................................ 130
The SET TRACK Command ...................................................................................... 131
The SPECIFY Command .......................................................................................... 131
The VERIFY Command ............................................................................................. 133
The VERSION Command .......................................................................................... 134
The WRITE DATA Command .................................................................................... 134
The WRITE DELETED DATA Command .................................................................. 135
Parallel Port Operation Modes .................................................................................. 137
Configuring Operation Modes .................................................................................... 137
Output Pin Protection ................................................................................................ 137
SPP Modes Register Set ........................................................................................... 138
SPP Data Register (DTR) .......................................................................................... 138
Status Register (STR) ............................................................................................... 139
SPP Control Register (CTR) ...................................................................................... 140
EPP Register Set ....................................................................................................... 141
SPP or EPP Data Register (DTR) ............................................................................. 141
SPP or EPP Status Register (STR) ........................................................................... 141
SPP or EPP Control Register (CTR) ......................................................................... 142
EPP Address Register (ADDR) ................................................................................. 142
EPP Data Register 0 (DATA0) .................................................................................. 142
EPP Data Register 1 (DATA1) .................................................................................. 142
EPP Data Register 2 (DATA2) .................................................................................. 142
EPP Data Register 3 (DATA3) .................................................................................. 143
EPP Mode Transfer Operations ................................................................................ 143
EPP 1.7 and 1.9 Zero Wait State Data Write and Read Operations ......................... 144
ECP Modes ............................................................................................................... 145
Software Operation .................................................................................................... 145
Table of Contents
9
www.national.com