![](http://datasheet.mmic.net.cn/380000/-PD98405_datasheet_16745025/-PD98405_11.png)
11
5.6
TRANSMIT/RECEIVE INDICATION....................................................................................203
5.7
LAN EMULATION FUNCTION............................................................................................207
5.8
ABR FUNCTION..................................................................................................................211
5.8.1
Overview.................................................................................................................211
5.8.2
Source/Destination Behavior ..................................................................................211
5.8.3
RM Cell Format.......................................................................................................214
5.8.4
ABR Parameters.....................................................................................................216
5.8.5
ABR Service Processing.........................................................................................217
5.8.6
Internal Congestion Control....................................................................................223
5.8.7
ABR Behavior..........................................................................................................228
5.8.8
ABR Command.......................................................................................................229
5.9
UBR FUNCTION..................................................................................................................232
5.9.1
UBR Service Processing.........................................................................................232
5.9.2
UBR Bands .............................................................................................................232
5.10 COMMANDS........................................................................................................................235
5.10.1 Not-Use-Command-FIFO Mode..............................................................................237
5.10.2 Use-Command-FIFO Mode ....................................................................................241
5.10.3 Command Description.............................................................................................245
5.11 MIB COUNTER....................................................................................................................254
5.12 INTERRUPT FUNCTION.....................................................................................................255
5.13 LOOPBACK FUNCTION.....................................................................................................256
5.14 GLOBAL SHUTDOWN FUNCTION....................................................................................257
CHAPTER 6 PHY FUNCTION........................................................................................................259
6.1
TRANSMISSION FUNCTION..............................................................................................260
6.2
RECEPTION FUNCTION ....................................................................................................265
6.3
OAM INFORMATION CONTROL FUNCTION....................................................................271
6.3.1
Transmission OAM Control.....................................................................................271
6.3.2
Reception OAM Control..........................................................................................274
6.4
FRAME OVERHEAD INSERT/DROP FUNCTION .............................................................280
6.5
ALARM REPORT PIN.........................................................................................................281
6.6
REGISTER FUNCTION.......................................................................................................282
6.7
LOOPBACK FUNCTION.....................................................................................................283
6.8
INTERRUPT PROCESSING ...............................................................................................285
CHAPTER 7 REGISTERS..............................................................................................................289
7.1
REGISTER MAP..................................................................................................................289
7.2
DIRECT ADDRESS REGISTERS.......................................................................................293
7.3
INDIRECT ADDRESS REGISTER......................................................................................309