參數(shù)資料
型號(hào): MD83C154TXXX-20P883
廠(chǎng)商: TEMIC SEMICONDUCTORS
元件分類(lèi): 微控制器/微處理器
英文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CDIP40
文件頁(yè)數(shù): 50/91頁(yè)
文件大?。?/td> 19688K
代理商: MD83C154TXXX-20P883
397
XMEGA A [MANUAL]
8077I–AVR–11/2012
33.11 SDRAM init
Figure 33-35.SDRAM init
Mode Register
CLK
CKE
CAS
RAS
DQM
BA[1:0]
A[11:0]
D
0x400
Pr
ec
ha
rge
Al
lBa
nk
s
Au
to
R
efr
esh**
Lo
ad
Mo
de
R
e
gis
te
r
NO
P*
* The number of NOPs is equal to RPDLY[2:0] (RPDLY = 1 is shown)
NO
P*
*
** The Auto Refresh and following NOPs are repeated 8 times
The number of NOPs is equal to ROWCYCDLY[2:0] (ROWCYCDLY = 1 is shown)
ClkPER2
WE
CS
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