參數(shù)資料
型號(hào): 9S12H256BDGV1
英文描述: 9S12H256B Device Guide
中文描述: 9S12H256B設(shè)備指南
文件頁數(shù): 116/130頁
文件大?。?/td> 2171K
代理商: 9S12H256BDGV1
MC9S12H256 Device User Guide — V01.18
116
Figure A-6 SPI Master Timing (CPHA =1)
Table A-17 SPI Master Mode Timing Characteristics
1
NOTES
:
1. The numbers 7, 8 in the column labeled “Num” are missing. This has been done on purpose to be consistent between the
Master and the Slave timing shown in
Table A-18
.
Conditions are shown in
Table A-4
unless otherwise noted, C
LOAD
= 200pF on all outputs
Num C
Rating
Symbol
Min
Typ
Max
Unit
1
P Operating Frequency
f
op
DC
1
/
4
f
bus
1
P SCK Period t
sck
= 1./f
op
t
sck
4
2048
t
bus
2
D Enable Lead Time
t
lead
1
/
2
t
sck
3
D Enable Lag Time
t
lag
1
/
2
t
sck
4
D Clock (SCK) High or Low Time
t
wsck
t
bus
30
1024 t
bus
ns
5
D Data Setup Time (Inputs)
t
su
25
ns
6
D Data Hold Time (Inputs)
t
hi
0
ns
9
D Data Valid (after SCK Edge)
t
v
25
ns
10
D Data Hold Time (Outputs)
t
ho
0
ns
11
D Rise Time Inputs and Outputs
t
r
25
ns
12
D Fall Time Inputs and Outputs
t
f
25
ns
SCK
(OUTPUT)
SCK
(OUTPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
1
5
6
MSB IN
2
BIT 6 . . . 1
LSB IN
MASTER MSB OUT
2
MASTER LSB OUT
BIT 6 . . . 1
4
4
9
11
12
10
PORT DATA
(CPOL
=
0)
(CPOL
=
1)
PORT DATA
SS
1
(OUTPUT)
2
12
11
3
1. If configured as output
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
F
For More Information On This Product,
Go to: www.freescale.com
n
.
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