參數(shù)資料
型號: DSP56852VFE
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: 16-bit Digital Signal Controllers
中文描述: 16位數(shù)字信號控制器
文件頁數(shù): 35/48頁
文件大?。?/td> 731K
代理商: DSP56852VFE
Synchronous Serial Interface (SSI) Timing
56852 Technical Data, Rev. 8
Freescale Semiconductor
35
Table 4-12 SSI Slave Mode
1
Switching Characteristics
Operating Conditions: V
SS
= V
SSIO
= V
SSA
= 0V, V
DD
= 1.62-1.98V, V
DDIO
= V
DDA
= 3.0–3.6V, T
A
= –40
°
to +120
°
C, C
L
50pF, f
op
= 120MHz
Parameter
Symbol
Min
Typ
Max
Units
STCK frequency
fs
15
2
MHz
STCK period
3
t
SCKW
66.7
ns
STCK high time
t
SCKH
33.4
4
ns
STCK low time
t
SCKL
33.4
4
ns
Output clock rise/fall time
4
ns
Delay from STCK high to STFS (bl) high - Slave
5
t
TFSBHS
-1
29
ns
Delay from STCK high to STFS (wl) high - Slave
5
t
TFSWHS
-1
29
ns
Delay from SRCK high to SRFS (bl) high - Slave
5
t
RFSBHS
-1
29
ns
Delay from SRCK high to SRFS (wl) high - Slave
5
t
RFSWHS
-1
29
ns
Delay from STCK high to STFS (bl) low - Slave
5
t
TFSBLS
-29
29
ns
Delay from STCK high to STFS (wl) low - Slave
5
t
TFSWLS
-29
29
ns
Delay from SRCK high to SRFS (bl) low - Slave
5
t
RFSBLS
-29
29
ns
Delay from SRCK high to SRFS (wl) low - Slave
5
t
RFSWLS
-29
29
ns
STCK high to STXD enable from high impedance - Slave
t
TXES
15
ns
STCK high to STXD valid - Slave
t
TXVS
4
15
ns
STFS high to STXD enable from high impedance (first bit) -
Slave
t
FTXES
4
15
ns
STFS high to STXD valid (first bit) - Slave
t
FTXVS
4
15
ns
STCK high to STXD not valid - Slave
t
TXNVS
4
15
ns
STCK high to STXD high impedance - Slave
t
TXHIS
4
15
ns
SRXD Setup time before SRCK low - Slave
t
SS
4
ns
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