參數(shù)資料
型號(hào)： IMST425-G20S
元件分類： 32位微控制器
英文描述： 32-Bit Microprocessor
中文描述： 32位微處理器
文件頁數(shù)： 24/74頁
文件大?。?/td> 563K
代理商： IMST425-G20S
IMS T400
/ 74
24
ProcClockOut
MemnotWrD0
MemnotRfD1
MemAD2–31
notMemWrB0–3
(Early write)
notMemS0
(CE)
notMemS1
(ALE)
T1
T2
T3
Tmx
T5
T6
T1
Tstate
TaVS0LTS0LaX
TWrHDX
TdVWrH
Data
Address
TS0LWrL
TWrLWrH
TS0HWrH
TS0LS0H
TS0LS1L
TS0LS1H
TS0HS1H
T4
Data
Data
notMemWrB0–3
(Late write)
TS0LWrL
TWrLWrH
9
5
1
Figure 5.8
IMS T400 external write cycle
5.4
Wait
Taking
MemWait
high with the timing shown (figure 5.9) will extend the duration of
T4
.
MemWait
is
sampled close to the falling edge of
ProcClockOut
during a
T3
or
T4
period, prior to, but not at the end
of
T4
. By convention,
notMemS4
is used to synchronize wait state insertion. If this or another strobe is
used, its delay should be such as to take the strobe low an even number of periods
Tm
after the start of
T1
, to coincide with a rising edge of
ProcClockOut
.
MemWait
may be kepthigh indefinitely, although ifdynamic memory refresh is used itshould notbe kept
high longenough to interfere with refresh timing.
MemWait
operates normallyduring all cycles,including
refresh and configuration cycles. It does not affect internal memory access in any way.
If thestartof
T5
wouldcoincidewitha fallingedgeof
ProcClockOut
an extrawait period
Tm
(
EW
)isgener-
atedbytheEMItoforcecoincidencewitharisingedge.Risingedgecoincidenceisonlyforcedifwaitstates
are added, otherwise coincidence with a falling edge is permitted.
相關(guān)PDF資料
PDF描述
IMST425G25S Peripheral IC
IMST425-G25S 32-Bit Microprocessor
IMST425G30S Peripheral IC
IMST425J17S Peripheral IC
IMST425-J17S 32-Bit Microprocessor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IMST425G25S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
IMST425-G25S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
IMST425G30S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
IMST425J17S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
IMST425-J17S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。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。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

我的聯(lián)系方式

*
*
*