參數(shù)資料
型號: DSP56F826BU80
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): 43/56頁
文件大小: 700K
代理商: DSP56F826BU80
Synchronous Serial Interface (SSI) Timing
56F826 Technical Data, Rev. 14
Freescale Semiconductor
43
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 3-14 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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