參數(shù)資料
型號(hào)： AM79C976KCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： PCnet-PRO⑩ 10/100 Mbps PCI Ethernet Controller
中文描述： 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP208
封裝： PLASTIC, QFP-208
文件頁(yè)數(shù)： 161/309頁(yè)
文件大?。?/td> 2070K
代理商： AM79C976KCW
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8/01/00
Am79C976
161
P R E L I M I N A R Y
Table 66.
PADR: Physical Address Register
0
Offset 0DEh
All bits in this register are cleared to 0 when the RST
pin is asserted, before the serial EEPROM is read, and
after a serial EEPROM read error. This register is read-
only.
Table 67.
PAUSE_CNT: Pause Count Register
0*40*B
Offset 1BCh
This register contains the data that appears in the
DATA_SCALE field of the PCI Power Management
Control/Status Register (PMCSR) and the PCI Data
Register when the DATA_SEL field of PMCSR is set to
0. Since the DATA_SCALE and DATA fields in the con-
figuration space are read only, this register provides a
means of programming them indirectly, normally by
loading them from the serial EEPROM.
This register is an alias of BCR37.
The contents of this register are cleared to 0 when the
RST pin is asserted, before the serial EEPROM is
read, and after a serial EEPROM read error.
Table 68. PCIDATA0: PCI DATA Register Zero Alias Register
0*0*
Offset 1BEh
This register is identical to the PCI Data Register Zero
Alias Register except that it contains the data that ap-
pears in the DATA_SCALE field of the PCI Power Man-
agement Control/Status Register (PMCSR) and the
PCI Data Register when the DATA_SEL field of
PMCSR is set to 1.
Bit
Name
Description
47-0
PADR
MAC Physical Address, PADR[47:0]. This register contains 48-bit, globally unique station address
assigned to this device. If the least significant bit of the first byte of a received frame is 0, the
destination address of the frame is a unicast address, which will be compared with the contents of
the PADR. If this bit is 0 and the frame
’
s destination address exactly matches the contents of PADR,
the frame is accepted and copied into the host system memory.
The byte order is such that PADR7[7:0] corresponds to the first address byte transferred over the
network.
Unicast address matching can be disabled by setting the Disable Receive Physical Address bit
(DCRVPA, bit 18 in CMD2). If DRCVPA is set to 1, a match of a frame
’
s destination address with
the contents of PADR will not cause the frame to be accepted and copied into the host memory.
The contents of this register should be loaded from EEPROM.
This register can also be loaded from the initialization block after the INIT bit in CSR0 has been set.
This register is an alias for CSR12, CSR13, and CSR14.
Bit
Name
Description
31-16
RES
Reserved locations. Written as zeros and read as undefined
15-0
PAUSE_CNT
Pause Count. This field indicates the pause time parameter that was contained in the
request_operand field of the most recently received MAC Control Pause frame.
Bit
Name
Description
15-10
RES
Reserved locations. Written as zeros and read as undefined.
9-8
D0_SCALE
These bits correspond to the DATA_SCALE field of the PMCSR (offset Register 44 of the PCI
configuration space, bits 14-13). Refer to the description of DATA_SCALE for the meaning of this
field.
7-0
DATA0
These bits correspond to the PCI DATA register (offset Register 47 of the PCI configuration space,
bits 7-0). Refer to the description of DATA register for the meaning of this field.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C976KD 制造商:Advanced Micro Devices 功能描述:ETHERNET:MEDIA ACCESS CONTROLLER (MAC)
AM79C976KF 制造商:Advanced Micro Devices 功能描述:Ethernet CTLR Single Chip 10Mbps/100Mbps 3.3V 208-Pin PQFP 制造商:AMD (Advanced Micro Devices) 功能描述:Ethernet CTLR Single Chip 10Mbps/100Mbps 3.3V 208-Pin PQFP
AM79C976KI 制造商:Advanced Micro Devices 功能描述:Ethernet CTLR Single Chip 10Mbps/100Mbps 3.3V 208-Pin PQFP 制造商:AMD (Advanced Micro Devices) 功能描述:Ethernet CTLR Single Chip 10Mbps/100Mbps 3.3V 208-Pin PQFP
AM79C976KIW 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet-PRO⑩ 10/100 Mbps PCI Ethernet Controller
AM79C978 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Single-Chip 1/10 Mbps PCI Home Networking Controller
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