參數(shù)資料
型號: PXA250
廠商: Intel Corp.
英文描述: Intel-R PXA250 and PXA210 Applications Processors
中文描述: 英特爾- R的PXA250和PXA210應(yīng)用處理器
文件頁數(shù): 41/46頁
文件大?。?/td> 431K
代理商: PXA250
Electrical, Mechanical, and Thermal Specification
PXA250 and PXA210
Datasheet
41
Table 19. Card Interface (PCMCIA or Compact Flash) AC Specifications
Symbol
Description
MEMCLK Frequency (MHz)
Units,
Notes
99.5
118.0
132.7
147.5
165.9
tcardAS
MA(25:0), nPREG, PSKTSEL, nPCE
setup to nPWE, nPOE, nPIOW, or
nPIOR asserted
20
17
15
13.6
12
ns, 1
tcardAH
MA(25:0), nPREG, PSKTSEL, nPCE
hold after nPWE, nPOE, nPIOW, or
nPIOR deasserted
10
8.5
7.5
6.8
6
ns, 1
tcardDS
MD(31:0) setup to nPWE, nPOE,
nPIOW, or nPIOR asserted
10
8.5
7.5
6.8
6
ns, 1
tcardDH
MD(31:0) hold after nPWE, nPOE,
nPIOW, or nPIOR deasserted
10
8.5
7.5
6.8
6
ns, 1
tcardCMD
nPWE, nPOE, nPIOW, or nPIOR
command assertion
30
25.5
22.5
20.4
18
ns, 1
NOTE:
These numbers are minimums. They can be much longer based on the programmable Card Interface
timing registers.
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