參數(shù)資料
型號(hào)： AM79C972BVIW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： PCnet⑩-FAST+ Enhanced 10/100 Mbps PCI Ethernet Controller with OnNow Support
中文描述： 5 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP176
封裝： TQFP-176
文件頁(yè)數(shù)： 101/130頁(yè)
文件大?。?/td> 1580K
代理商： AM79C972BVIW
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)當(dāng)前第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)
Am79C972
101
1
RES
Reserved location. Read as zero;
write operations have no effect.
0
IOSPACE
I/O space indicator. Read as one;
write operations have no effect.
Indicating that this base address
register describes an I/O base
address.
PCI Memory Mapped I/O Base Address Register
Offset 14h
The PCI Memory Mapped I/O Base Address register is
a 32-bit register that determines the location of the
Am79C972 I/O resources in all of memory space. It is
located at offset 14h in the PCI Configuration Space.
Bit
Name
Description
31-5
MEMBASE Memory mapped I/O base ad-
dress most significant 27 bits.
These bits are written by the host
to specify the location of the
Am79C972 I/O resources in all of
memory space. MEMBASE must
be written with a valid address
before the Am79C972 controller
slave memory mapped I/O mode
is turned on by setting the ME-
MEN bit (PCI Command register,
bit 1).
When the Am79C972 controller
is enabled for memory mapped
I/O mode (MEMEN is set), it mon-
itors the PCI bus for a valid mem-
ory command. If the value on
AD[31:5] during the address
phase of the cycles matches the
value
of
MEMBASE,
Am79C972 controller will drive
DEVSEL indicating it will respond
to the access.
the
MEMBASE is read and written by
the host. MEMBASE is cleared
by H_RESET and is not affected
by S_RESET or by setting the
STOP bit.
4
MEMSIZE
Memory mapped I/O size re-
quirements. Read as zeros; write
operations have no effect.
MEMSIZE indicates the size of
the
memory
Am79C972 controller requires.
When the host writes a value of
FFFF FFFFh to the Memory
Mapped I/O Base Address regis-
space
the
ter, it will read back a value of 0 in
bit 4. That indicates a Am79C972
memory space requirement of 32
bytes.
3
PREFETCH Prefetchable. Read as zero; write
operations have no effect. Indi-
cates that memory space con-
trolled by this base address
register is not prefetchable. Data
in the memory mapped I/O space
cannot be prefetched. Because
one of the I/O resources in this
address space is a Reset regis-
ter, the order of the read access-
es is important.
2-1
TYPE
Memory type indicator. Read as
zeros; write operations have no
effect. Indicates that this base ad-
dress register is 32 bits wide and
mapping can be done anywhere
in the 32-bit memory space.
0
MEMSPACE
Memory space indicator. Read
as zero; write operations have no
effect. Indicates that this base ad-
dress register describes a memo-
ry base address.
PCI Subsystem Vendor ID Register
Offset 2Ch
The PCI Subsystem Vendor ID register is a 16-bit reg-
ister that together with the PCI Subsystem ID uniquely
identifies the add-in card or subsystem the Am79C972
controller is used in. Subsystem Vendor IDs can be ob-
tained from the PCI SIG. A value of 0 (the default) indi-
cates that the Am79C972 controller does not support
subsystem identification. The PCI Subsystem Vendor
ID is an alias of BCR23, bits 15-0. It is programmable
through the EEPROM.
The PCI Subsystem Vendor ID register is located at off-
set 2Ch in the PCI Configuration Space. It is read only.
PCI Subsystem ID Register
Offset 2Eh
The PCI Subsystem ID register is a 16-bit register that
together with the PCI Subsystem Vendor ID uniquely
identifies the add-in card or subsystem the Am79C972
controller is used in. The value of the Subsystem ID is
up to the system vendor. A value of 0 (the default) indi-
cates that the Am79C972 controller does not support
subsystem identification. The PCI Subsystem ID is an
alias of BCR24, bits 15-0. It is programmable through
the EEPROM.
The PCI Subsystem ID register is located at offset 2Eh
in the PCI Configuration Space. It is read only.
相關(guān)PDF資料
PDF描述
AM79C974 PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems
AM79C974KCW PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems
AM79C975 PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C973 PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C973KCW PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C973 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C973/75 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Board Layout Considerations for the Am79C973/75 Network Interface? - (PDF)
AM79C973/AM79C975 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Am79C973/Am79C975 - PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C973AVC\\W 制造商:Advanced Micro Devices 功能描述:
AM79C973AVC\W 制造商:Advanced Micro Devices 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*