82595FX Datasheet, PDF (2/54 Pages) Intel Corporation – ISA BUS HIGH INTEGRATION ETHERNET CONTROLLER

82595FX
ISA Bus High Integration ETHERNET Controller
CONTENTS
PAGE
1 0 INTRODUCTION
5
1 1 82595FX Overview
5
1 2 Power Management
5
1 3 Auto-Negotiation
5
1 4 Compliance to Industry
Standards
6
1 4 1 Bus Interface ISA IEEE
P996
6
1 4 2 ETHERNET Twisted Pair
Ethernet Interface IEEE 802 3
Specification
6
2 0 82595FX PIN DEFINITIONS
6
2 1 ISA Bus Interface
6
2 2 Local Memory Interface
8
2 3 Miscellaneous Control
9
2 4 JTAG Control
9
2 5 Serial Interface
9
2 6 Serial Interface LEDs
10
2 7 Power and Ground
11
2 8 Reserved Pins
11
2 9 82595FX Pin Summary
12
3 0 82595FX INTERNAL
ARCHITECTURE OVERVIEW
13
3 1 System Interface Overview
13
3 1 1 Concurrent Processing
Functionality
13
3 2 Local Memory Interface
13
3 3 CSMA CD Unit
14
3 4 Serial Interface
14
4 0 ACCESSING THE 82595FX
14
4 1 82595FX Register Map
14
4 1 1 IO Bank 0
15
4 1 2 IO Bank 1
16
4 1 3 IO Bank 2
17
4 2 Writing to the 82595FX
17
4 3 Reading from the 82595FX
18
CONTENTS
4 4 Local SRAM Accesses
4 4 1 Writing to Local Memory
4 4 2 Reading from Local
Memory
4 5 Serial EEPROM Interface
4 6 Boot EPROM FLASH Interface
PAGE
18
18
18
19
20
5 0 COMMAND AND STATUS
INTERFACE
20
5 1 Command OP Code Field
20
5 2 ABORT (Bit 5)
20
5 3 Pointer Field (Bits 6 and 7)
20
5 4 82595FX Status Interface
22
6 0 INITIALIZATION
22
7 0 FRAME TRANSMISSION
23
7 1 82595FX XMT Block Memory
Format
23
7 2 XMT Chaining
25
7 3 Automatic Retransmission on
Collision
28
8 0 FRAME RECEPTION
28
8 1 82595FX RCV Memory
Structure
28
8 2 RCV Ring Buffer Operation
31
9 0 SERIAL INTERFACE
32
10 0 APPLICATION NOTES
33
10 1 Bus Interface
33
10 2 Local Memory Interface
33
10 3 EEPROM Interface (ISA Only)
33
10 4 Serial Interface
33
10 4 1 AUI Circuit
33
10 4 2 TPE Circuit
34
10 4 3 LED Circuit
34
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