- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366550 > AM79C930VCW (ADVANCED MICRO DEVICES INC) PCnet-Mobile Single-Chip Wireless LAN Media Access Controller PDF資料下載
參數(shù)資料
| 型號(hào)： | AM79C930VCW |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | PCnet-Mobile Single-Chip Wireless LAN Media Access Controller |
| 中文描述： | 2 CHANNEL(S), LOCAL AREA NETWORK CONTROLLER, PQFP144 |
| 封裝： | TQFP-144 |
| 文件頁(yè)數(shù)： | 70/161頁(yè) |
| 文件大小： | 691K |
| 代理商： | AM79C930VCW |
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)當(dāng)前第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)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)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)
AMD
P R E L I M I N A R Y
70
Am79C930
The Am79C930 device maps the Resource Data regis-
ter accesses into 1K–16 of the upper 1 Kbytes of the
Flash memory space so that Resource Data may be
read from the Flash memory. Byte 0 of the Am79C930
device’s Resource Data is mapped to location 1 FC00h
of the Flash memory. A maximum of 1K–16 bytes of Re-
source Data is allowed by the Am79C930 design.
Note that the upper 16 bytes of the Flash memory are
reserved for use by the firmware and the embedded
80188 core for 80188 core initialization. The upper 16
bytes of the Flash memory may not be used to store ISA
Plug and Play Resource Data.
MAC Firmware Resources
The Am79C930 device contains an embedded 80188
core that can be used to perform the majority of the tasks
necessary to implement the MAC portion of the IEEE
802.11 (draft) standard. The following section describes
the resources that are available to the 80188 core and,
hence, to firmware written for the embedded 80188.
MAC (80188 core) Memory Resources
— The
Am79C930 device contains several resources that are
accessible through the 80188 core. These resources in-
clude: up to 128K–128 bytes of SRAM, up to 128 Kbytes
of Flash memory, 16 MIR registers, 32 TIR registers,
and 16 bytes of peripheral device space attached to the
XCE
pin. All of the resources that are available to the
80188 core are mapped into 80188 memory space. The
LMCS and UMCS registers of the 80188 core must be
properly programmed to generate
UCS
and
LCS
signals
in order to take full advantage of all of the resources pro-
vided by the Am79C930 device and associated SRAM,
Flash and
XCE
devices.
(In reality, only
UCS
is used internally. When an access
is performed without the presence of an active
UCS
signal, then
LCS
is assumed, and the access is exter-
nally directed toward the SRAM with the
SCE
signal, or
internally to the TAI register set, or to the external
XCE
device).
Note that the BIU contains at least two separate register
spaces. The System Interface Registers (SIR) (space is
visible to the system interface, but is not visible to the
embedded 80188. The MAC Interface Registers (MIR)
space is visible to the embedded 80188, but is not vis-
ible to the system interface. Communication between
the device driver and the 80188 core occurs indirectly,
as the bits of the MIR0 register will affect bits in the
General Configuration Register (SIR0) and vice versa.
Note that a total of 16 bytes of space is reserved for the
MIR registers, while currently only 10 MIR registers are
defined. The remaining 6 MIR locations are reserved.
Also note that all 32 TIR registers are visible to both the
80188 core and the system interface.
Am79C930 80188 memory resources may be mapped
using either of two schemes. One scheme makes 256K
separate memory locations usable as 128K of Flash
memory space, 128K–128 bytes of SRAM, 64 bytes of
BIU, TAI, and
XCE
resources and 64 bytes of reserved
space. The other mapping scheme will alias the Flash
memory into a portion of the SRAM space. The following
text and tables describe each of the mapping schemes.
The first mapping scheme (scheme “A”) places SRAM,
the 32 TIR registers, the 16 MIR registers, and the 16
XCE
locations into the lower 128K of memory space.
The Flash memory is mapped into the upper 128K of
memory space. This scheme requires that the LMCS
register of the 80188 core be set to 1FF8h. The UMCS
register of the 80188 core must be set to E038h. Also re-
quired is that bit 6 of the MIR0 register (the mapping se-
lect bit) is set to 0.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM79C940VCW | Media Access Controller for Ethernet (MACE) |
| AM79C940 | Media Access Controller for Ethernet (MACE) |
| AM79C940JCW | Media Access Controller for Ethernet (MACE) |
| AM79C940KCW | Media Access Controller for Ethernet (MACE) |
| AM79C960 | PCnetTM-ISA Single-Chip Ethernet Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C940 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE) |
| AM79C940_00 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE⑩) |
| AM79C940-16/25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| AM79C940-16JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| AM79C940-25JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。