參數(shù)資料
型號: DSP56F827FG80
廠商: 飛思卡爾半導(dǎo)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): 46/60頁
文件大小: 811K
代理商: DSP56F827FG80
56F827 Technical Data, Rev. 12
46
Freescale Semiconductor
Delay from STCK high to STFS (bl) high - Slave
5
t
TFSBHS
0.1
46
ns
Delay from STCK high to STFS (wl) high - Slave
5
t
TFSWHS
0.1
46
ns
Delay from SRCK high to SRFS (bl) high - Slave
5
t
RFSBHS
0.1
46
ns
Delay from SRCK high to SRFS (wl) high - Slave
5
t
RFSWHS
0.1
46
ns
Delay from STCK high to STFS (bl) low - Slave
5
t
TFSBLS
-1
ns
Delay from STCK high to STFS (wl) low - Slave
5
t
TFSWLS
-1
ns
Delay from SRCK high to SRFS (bl) low - Slave
5
t
RFSBLS
-46
ns
Delay from SRCK high to SRFS (wl) low - Slave
5
t
RFSWLS
-46
ns
STCK high to STXD enable from high impedance - Slave
t
TXES
ns
STCK high to STXD valid - Slave
t
TXVS
1
25
ns
STFS high to STXD enable from high impedance (first bit) - Slave
t
FTXES
5.5
25
ns
STFS high to STXD valid (first bit) - Slave
t
FTXVS
6
27
ns
STCK high to STXD not valid - Slave
t
TXNVS
11
13
ns
STCK high to STXD high impedance - Slave
t
TXHIS
11
28.5
ns
SRXD Setup time before SRCK low - Slave
t
SS
4
ns
SRXD Hold time after SRCK low - Slave
t
HS
4
ns
Synchronous Operation (in addition to standard external clock parameters)
SRXD Setup time before STCK low - Slave
t
TSS
4
SRXD Hold time after STCK low - Slave
t
THS
4
1.
Slave mode is externally generated clocks and frame syncs
2.
Max clock frequency is IP_clk/4 = 40MHz / 4 = 10MHz for an 80MHz part.
3.
and a non-inverted frame sync (TFSI=0 in SCR2 and RFSI=0 in SCSR). If the polarity of the clock and/or the frame sync have
been inverted, all the timings remain valid by inverting the clock signal STCK/SRCK and/or the frame sync STFS/SRFS in the
tables and in the figures.
All the timings for the SSI are given for a non-inverted serial clock polarity (TSCKP=0 in SCR2 and RSCKP=0 in SCSR)
4.
50% duty cycle
5.
bl = bit length; wl = word length
Table 3-15 SSI Slave Mode
1
Switching Characteristics
Operating Conditions: V
SSIO
=V
SS
= V
SSA
= 0V, V
DDA
=V
DDIO
=3.0–3.6V, V
DD
= 2.25–2.75V, T
A
= –40
°
to +85
°
C, C
L
50pF, f
op
= 80MHz
Parameter
Symbol
Min
Typ
Max
Units
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