參數(shù)資料
型號(hào): AX88195P
廠(chǎng)商: ASIX Electronics Corporation
英文描述: 10/100BASE Local CPU Bus Fast Ethernet MAC Controller
中文描述: 一個(gè)10/100Base本地CPU總線(xiàn)快速以太網(wǎng)MAC控制器
文件頁(yè)數(shù): 18/37頁(yè)
文件大小: 414K
代理商: AX88195P
ASIX ELECTRONICS CORPORATION
18
AX88195 Local CPU Bus Fast Ethernet MAC Controller
4.3 Interrupt mask register (IMR) Offset 0FH (Write)
FIELD
NAME
7
-
Reserved
6
RDCE
DMA Complete Interrupt Enable. Default “l(fā)ow” disabled.
5
CNTE
Counter Overflow Interrupt Enable. Default “l(fā)ow” disabled.
4
OVWE Overwrite Interrupt Enable. Default “l(fā)ow” disabled.
3
TXEE
Transmit Error Interrupt Enable. Default “l(fā)ow” disabled.
2
RXEE
Receive Error Interrupt Enable. Default “l(fā)ow” disabled.
1
PTXE
Packet Transmitted Interrupt Enable. Default “l(fā)ow” disabled.
0
PRXE
Packet Received Interrupt Enable. Default “l(fā)ow” disabled.
DESCRIPTION
4.4 Data Configuration Register (DCR) Offset 0EH (Write)
FIELD
NAME
7
RDCR
Remote DMA always completed
6:2
-
Reserved
1
BOS
Byte Order Select
0: MS byte placed on AD15:AD8 and LS byte on AD7-AD0 (80186).
1: MS byte placed on AD7::AD0 and LS byte on AD15:AD0(MC68K)
0
WTS
Word Transfer Select
0 : Selects byte-wide DMA transfers.
1 : Selects word-wide DMA transfers.
DESCRIPTION
4.5 Transmit Configuration Register (TCR) Offset 0DH (Write)
FIELD
NAME
7
FDU
Full Duplex :
This bit indicates the current media mode is Full Duplex or not.
0 : Half duplex
1 : Full duplex
6
PD
Pad Disable
0 : Pad will be added when packet length less than 60.
1 : Pad will not be added when packet length less than 60.
5
RLO
Retry of late collision
0 : Don’t retransmit packet when late collision happens.
1 : Retransmit packet when late collision happens.
4:3
-
Reserved
2:1
LB1,LB0 Encoded Loop-back Control
These encoded configuration bits set the type of loop-back that is to be performed.
LB1 LB0
Mode 0 0 0 Normal operation
Mode 1 0 1 Internel NIC loop-back
Mode 2 1 0 PHYcevisor loop-back
0
CRC
Inhibit CRC
0 : CRC appended by transmitter.
1 : CRC inhibited by transmitter.
DESCRIPTION
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