參數(shù)資料
型號(hào): 82559
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: Fast Ethernet Multifunction PCI/CARD bus controller(快速以太網(wǎng)多功能PCI/CARD 總線控制器)
中文描述: 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PBGA196
封裝: 15 X 15 MM, BGA-196
文件頁(yè)數(shù): 115/124頁(yè)
文件大小: 1332K
代理商: 82559
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Networking Silicon — 82559
Datasheet
105
12.4.2.3
Flash/Modem Interface Timings
The 82559 is designed to support up to 150 nanoseconds of Flash access time. The V
PP
signal in
the Flash implementation should be connected permanently to 12 V. Thus, writing to the Flash is
controlled only by the FLWE# pin.
Table 41
provides the timing parameters for the Flash interface signals. The timing parameters are
illustrated in
Figure 34
and
Figure 35
.
Modem is supported through the Flash interface when the following conditions apply:
FLA[6:0], FLD[7:0], FLCS#, FLOE#, and FLWE# have the same functions for Flash and
modem.
FLA[8] acts as IOCHRDY asynchronous input in modem mode.
Table 41. Flash Timing Parameters
Symbol
Parameter
Min
Max
Units
Notes
T35
t
flrwc
Flash Read/Write Cycle Time
150
ns
1, Flash t
AVAV
= 150 ns
T36
t
flacc
FLA to Read FLD Setup Time
150
ns
1, Flash t
AVQV
= 150 ns
T37
t
flce
FLCS# to Read FLD Setup Time
150
ns
1, Flash t
ELQV
= 150 ns
T38
t
floe
FLOE# Active to Read FLD Setup Time
120
ns
1, Flash t
GLQV
= 55 ns
T39
t
fldf
FLOE# Inactive to FLD Driven Delay
Time
50
ns
1, Flash t
GHQZ
= 35 ns
T40
t
flas
FLA Setup Time before FLWE#
5
ns
2, Flash t
AVWL
= 0 ns
T41
t
flah
FLA Hold Time after FLWE#
200
ns
2, Flash t
WLAX
= 60 ns
T42
t
flcs
FLCS# Hold Time before FLWE#
30
ns
2, Flash t
ELWL
= 20 ns
T43
t
flch
FLCS# Hold Time after FLWE#
30
ns
2, Flash t
WHEH
= 0 ns
T44
t
flds
FLD Setup Time
150
ns
2, Flash t
DVWH
= 50 ns
T45
t
fldh
FLD Hold Time
10
ns
2, Flash t
WHDX
= 10 ns
T46
t
flwp
Write Pulse Width
120
ns
2, Flash t
WLWH
= 60 ns
T47
t
flwph
Write Pulse Width High
25
ns
2, Flash t
WHWL
= 20 ns
T48
t
Mioha
IOCHRDY Hold Time after FLWE# or
FLOE# Active
25
ns
T49
t
Miohi
IOCHRDY Hold Time after FLWE# or
FLOE# Inactive
0
ns
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