參數(shù)資料
型號： 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
文件頁數(shù)： 132/161頁
文件大小： 691K
代理商： AM79C930VCW
AMD
P R E L I M I N A R Y
132
Am79C930
PCMCIA MEMORY WRITE ACCESS
Parameter
Symbol
t
AVWL
t
AVWH
t
WMAX
Parameter Description
Address setup to
WE
↓
Address setup to
WE
↑
Write recovery time
(Address hold from
WE
↑
)
CE
setup to
WE
↑
CE
setup to
WE
↓
CE
hold from
OE
↑
(READ) or
CE
hold from
WE
↑
(WRITE)
OE
setup to
WE
↓
OE
hold from
WE
↑
WE
pulse width
WAIT
valid from
WE
↓
WAIT
pulse width
WE
hold from
WAIT
↑
Data setup to
WE
↑
Data hold from
WE
↑
Data disabled from
OE
↑
Data disabled from
WE
↓
Data enabled from
WE
↑
Data enabled from
OE
↓
Test Conditions
Min
20
100
Max
Unit
ns
ns
20
140
0
ns
ns
ns
t
ELWH
t
ELWL
t
GHEH
20
10
10
120
35
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
GHWL
t
WHGL
t
WLWH
t
WLWTV
t
WTLWTH
t
WTHWH
t
DVWH
t
WMDX
t
GHQZ
t
WLQZ
t
WHQNZ
t
GLQNZ
Notes 1, 2
53 X T
CLKIN
0
60
30
Note 2
Note 2
Note 2
Note 2
90
90
5
5
Notes:
1. The max value for this parameter assumes the following worst case situation:
Value
Worst Case
0
FLASH and SRAM wait states set at “3.”
1
Host performs PCMCIA WRITE cycle at same time that Am79C930 embedded 80188 controller begins
instruction fetch cycle to FLASH memory.
2
PCMCIA WRITE cycle is posted internal to Am79C930 device, pending the completion of the embedded 80188
controller access.
3
Host performs PCMCIA READ cycle immediately following completion of PCMCIA WRITE cycle.
4
After completion of first embedded 80188 access to FLASH, posted PCMCIA WRITE executes to SRAM;
PCMCIA READ stycle is being held in wait state.
5
After completion of posted ISA WRITE cycle, new embedded 80188 access to FLASH begins.
6
After completion of second embedded 80188 access to FLASH, PCMCIA READ cycle s allowed to proceed onto
memory bus to SRAM; host is still held in wait state.
7
At SRAM READ cycle completion, data is delivered to PCMCIA bus and wait state is exited.
2. Parameter is not included in production test.
相關PDF資料
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相關代理商/技術參數(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
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