參數(shù)資料
型號(hào): S9S08LG32J0VLF
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, MS-026BBC, LQFP-48
文件頁(yè)數(shù): 25/50頁(yè)
文件大?。?/td> 2880K
代理商: S9S08LG32J0VLF
Electrical Characteristics
MC9S08LG32 Series Data Sheet, Rev. 9
Freescale Semiconductor
31
2.11.3
SPI Timing
Table 16 and Figure 23 through Figure 26 describe the timing requirements for the SPI system.
Table 16. SPI Timing
No.
C
Function
Symbol
Min
Max
Unit
D
Operating frequency
Master
Slave
fop
fBus/2048
0
fBus/2
fBus/4
Hz
D
SPSCK period
Master
Slave
tSPSCK
2
4
2048
tcyc
D
Enable lead time
Master
Slave
tLead
1
2
1
tSPSCK
tcyc
D
Enable lag time
Master
Slave
tLag
1
2
1
tSPSCK
tcyc
D
Clock (SPSCK) high or low time
Master
Slave
tWSPSCK
tcyc –30
tcyc – 30
1024 tcyc
ns
D
Data setup time (inputs)
Master
Slave
tSU
15
ns
D
Data hold time (inputs)
Master
Slave
tHI
0
25
ns
D
Slave access time
ta
—1
tcyc
D
Slave MISO disable time
tdis
—1
tcyc
D
Data valid (after SPSCK edge)
Master
Slave
tv
25
ns
D
Data hold time (outputs)
Master
Slave
tHO
0
ns
D
Rise time
Input
Output
tRI
tRO
tcyc – 25
25
ns
D
Fall time
Input
Output
tFI
tFO
tcyc – 25
25
ns
1
2
3
4
5
6
7
8
9
10
11
12
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