
Table of Contents
(continued)
Contents
Page
Agere Systems Inc.
5
Data Sheet
July 2001
T8302 Internet Protocol Telephone
Advanced RISC Machine (
ARM
)
10.7.18 MAC Controller Transmit Start Register ....................................................................................116
10.7.19 MAC Transmit Status Register ..................................................................................................116
10.7.20 MAC Collision Counter ..............................................................................................................118
10.7.21 MAC Packet Delay Counter ......................................................................................................118
10.7.22 MAC Transmitted Packet Counter .............................................................................................118
10.7.23 MAC Transmitted Single Collision Counter ...............................................................................118
10.7.24 MAC Transmitted Multiple Collision Counter .............................................................................119
10.7.25 MAC Excess Collision Counter .................................................................................................119
10.7.26 MAC Packet Deferred Counter ..................................................................................................119
10.7.27 MAC Controller Receive Control Register .................................................................................119
10.7.28 MAC FIFO Status Register ........................................................................................................120
10.7.29 MAC Controller Interrupt Status Register ..................................................................................120
10.8 Signal Information ..................................................................................................................................121
10.8.1 MII MAC I/O Signals ....................................................................................................................121
11 10/100 2-Port Repeater and Backplane Segment Controller .........................................................................123
11.1 MII Transmit and Receive Interface .......................................................................................................124
11.1.1 Repeater Slice Interface ..............................................................................................................124
11.1.2 PHY Interface ..............................................................................................................................124
11.1.3 Backplane Interface .....................................................................................................................125
11.1.3.1 MAC Interface ...............................................................................................................125
11.1.4 Receive Path ...............................................................................................................................126
11.1.5 Transmit Path ..............................................................................................................................126
11.2 Input Clocks ...........................................................................................................................................126
11.3 Repeater Slice Theory of Operation .......................................................................................................126
11.3.1 Repeater Core .............................................................................................................................126
11.3.2 10/100 Mbits/s Operation ............................................................................................................126
11.3.3 Collisions .....................................................................................................................................127
11.3.4 Partition and Isolate .....................................................................................................................127
11.3.4.1 Partitioning ....................................................................................................................127
11.3.4.2 MAU Jabber Lockup Protection (MJLP) ........................................................................127
11.3.4.3 Receive Jabber .............................................................................................................127
11.3.4.4 Isolate on an Incorrect Clock Frequency .......................................................................128
11.3.4.5 Automatic Speed Mismatch Protection .........................................................................128
11.3.5 Carrier Integrity Monitor ...............................................................................................................128
11.4 Repeater Slice Interfaces .......................................................................................................................129
11.4.1 Repeater Slice
ARM
Interface .....................................................................................................129
11.4.2 Repeater Slice Interface .............................................................................................................129
11.4.3 Repeater Slice Input Clocks ........................................................................................................131
11.4.4 Backplane Segment 10/100 Mbits/s Serial Mac Interface Port B ................................................132
11.5 Repeater Slice Register Map .................................................................................................................133
11.5.1 Global Maximum Frame Size Register ........................................................................................134
11.5.2 Global Configuration Register .....................................................................................................135
11.5.3 Port Control Registers, for Port 0, 1 ............................................................................................136
11.5.4 Port Configuration Register 0 for Port 0, 1 ..................................................................................136
11.5.5 Port Configuration Register 1, for Port 0, 1 .................................................................................138
11.5.6 Global Interrupt Enable Register .................................................................................................139
11.5.7 Global Interrupt Status Register ..................................................................................................140
11.5.8 Global Port Status Register, for Port 0, 1 ....................................................................................141
12 Ethernet 10/100 PHY(s) .................................................................................................................................142
12.1 10 Mbits Transceiver Features ...............................................................................................................142