參數(shù)資料
型號(hào): CLRC632
廠商: NXP Semiconductors N.V.
英文描述: Multiple Protocol Contactless Reader IC
中文描述: 多協(xié)議非接觸式讀卡器IC
文件頁數(shù): 156/163頁
文件大?。?/td> 948K
代理商: CLRC632
Philips Semiconductors
Product Specification Rev. 3.0; May 2003
Multiple Protocol Contactless Reader IC
CL RC632
156
Confidential
22.5.2.4 Timing for SPI compatible interface
SYMBOL
t
SCKL
t
SCKH
t
SHDX
t
DXSH
t
SLDX
t
SLNH
PARAMETER
SCK low pulse width
SCK high pulse width
SCK high to data changes
data changes to SCK high
SCK low to data changes
SCK low to NSS high
MIN
100
100
20
20
20
MAX
15
UNIT
ns
ns
ns
ns
ns
ns
Table 22-13 Timing Specification for SPI
Note: To send more than bytes in one datastream the NSS signal has to low all the time.
To send more than one datastream NSS has to be set to HIGH level in between the datastreams.
SCK
MOSI
NSS
MISO
t
SCKL
t
SCKL
t
SCKH
t
SHDX
t
DXSH
MSB
LSB
MSB
LSB
t
SLDX
t
DXSH
t
SLNH
Figure 22 Timing Diagram for SPI
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