參數(shù)資料
型號(hào): 9S12DT256DGV3
廠商: Motorola, Inc.
英文描述: MC9S12DT256 Device User Guide V03.03
中文描述: MC9S12DT256設(shè)備的用戶手冊(cè)V03.03
文件頁數(shù): 122/130頁
文件大?。?/td> 2077K
代理商: 9S12DT256DGV3
MC9S12DT256 Device User Guide — V03.03
120
Figure A-8 SPI Slave Timing (CPHA=1)
In
Table A-20
the timing characteristics for slave mode are listed.
Table A-20 SPI Slave Mode Timing Characteristics
Num
Characteristic
Symbol
Unit
Min
DC
Typ
Max
1
/
4
1
SCK Frequency
f
sck
t
sck
t
lead
t
lag
t
wsck
t
su
t
hi
t
a
t
dis
t
vsck
f
bus
t
bus
t
bus
t
bus
t
bus
ns
1
SCK Period
4
2
Enable Lead Time
4
3
Enable Lag Time
4
4
Clock (SCK) High or Low Time
4
5
Data Setup Time (Inputs)
8
6
Data Hold Time (Inputs)
8
ns
7
Slave Access Time (time to data active)
20
ns
8
Slave MISO Disable Time
22
ns
9
Data Valid after SCK Edge
30 + t
bus1
30 + t
bus1
NOTES
:
1. t
bus
added due to internal synchronization delay
ns
10
Data Valid after SS fall
t
vss
t
ho
t
rfi
t
rfo
ns
11
Data Hold Time (Outputs)
20
ns
12
Rise and Fall Time Inputs
8
ns
13
Rise and Fall Time Outputs
8
ns
SCK
(INPUT)
SCK
(INPUT)
MOSI
(INPUT)
MISO
(OUTPUT)
1
5
6
MSB IN
BIT 6 . . . 1
LSB IN
MSB OUT
SLAVE LSB OUT
BIT 6 . . . 1
4
4
9
12
13
11
(CPOL
=
0)
(CPOL
=
1)
SS
(INPUT)
2
12
13
3
NOTE: Not defined!
SLAVE
7
8
see
note
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