參數(shù)資料
型號(hào): AM79C961AKIW
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA
中文描述: 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132
封裝: PLASTIC, QFP-132
文件頁(yè)數(shù): 108/206頁(yè)
文件大?。?/td> 1507K
代理商: AM79C961AKIW
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108
Am79C961A
Read/write accessible only when
STOP or SPND bits are set.
CSR52-53: Temporary Storage
Bit
Name
Description
31-0
TMP2
Temporary Storage location.
Read/write
accessible
when STOP or SPND bits are
set.
only
CSR54-55: Temporary Storage
Bit
Name
Description
31-0
TMP3
Temporary Storage location.
Read/write
accessible
when STOP or SPND bits are
set.
only
CSR56-57: Temporary Storage
Bit
Name
Description
31-0
TMP4
Temporary Storage location.
Read/write
accessible
when STOP or SPND bits are
set.
only
CSR58-59: Temporary Storage
Bit
Name
Description
31-0
TMP5
Temporary Storage location.
Read/write
accessible
when STOP or SPND bits are
set.
only
CSR60-61: Previous Transmit Descriptor Address
Bit
Name
Description
31-24
RES
Reserved locations. Written as
zero and read as undefined.
Contains the previous TDRE
address pointer. The PCnet-ISA
II controller has the capability to
stack multiple transmit frames.
Read/write
accessible
when STOP or SPND bits are
set.
23-0
PXDA
only
CSR62-63: Previous Transmit Status and Byte
Count
Bit
Name
Description
31-24
PXST
Previous Transmit Status. This
field is a copy of bits 15:8 of
TMD1 of the previous transmit
descriptor.
Read/write
when STOP or SPND bits are
set.
Reserved locations. Written as
zero and read as undefined.
Accessible only when STOP bit
is set.
Previous Transmit Byte Count.
This field is a copy of the BCNT
field of TMD2 of the previous
transmit descriptor.
Read/write
accessible
when STOP or SPND bits are
set.
accessible
only
23-12
RES
11-0
PXBC
only
CSR64-65: Next Transmit Buffer Address
Bit
Name
Description
31-24
RES
Reserved locations. Written as
zero and read as undefined.
Contains the next transmit buffer
address from which the PC-
net-ISA II controller will transmit
an outgoing frame.
Read/write
accessible
when STOP or SPND bits are
set.
23-0
NXBA
only
CSR66-67: Next Transmit Status and Byte Count
Bit
Name
Description
31-24
NXST
Next Transmit Status. This field
is a copy of bits 15:8 of TMD1 of
the next transmit descriptor.
Read/write
accessible
when STOP or SPND bits are
set.
Reserved locations. Written as
zero and read as undefined.
Accessible only when STOP bit
is set.
Next Transmit Byte Count. This
field is a copy of the BCNT field
of TMD2 of the next transmit
descriptor.
Read/write
accessible
when STOP or SPND bits are
set.CSR68-69: Transmit Status
Temporary Storage
only
23-12
RES
11-0
NXBC
only
Bit
Name
Description
31-0
XSTMP
Transmit
Storage location.
Read/write
when STOP or SPND bits are
set.
Status
Temporary
accessible
only
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