參數(shù)資料
型號： TMS320C209-57
元件分類： 數(shù)字信號處理
英文描述： Digital Signal Processor
中文描述： 數(shù)字信號處理器
文件頁數(shù)： 97/132頁
文件大?。?/td> 1707K
代理商： TMS320C209-57
SPRS145G
–
JULY 2000
–
REVISED FEBRUARY 2002
97
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
–
1443
SPI SLAVE MODE TIMING PARAMETERS
Slave mode timing information is listed in the following tables.
SPI slave mode external timing parameters (clock phase = 0)
(see Figure 42)
NO.
12
MIN
MAX
UNIT
ns
tc(SPC)S
tw(SPCH)S
tw(SPCL)S
tw(SPCL)S
tw(SPCH)S
Cycle time, SPICLK
4tc(CO)
0.5tc(SPC)S
–
10
0.5tc(SPC)S
–
10
0.5tc(SPC)S
–
10
0.5tc(SPC)S
–
10
13
§
Pulse duration, SPICLK high (clock polarity = 0)
0.5tc(SPC)S
0.5tc(SPC)S
0.5tc(SPC)S
0.5tc(SPC)S
ns
Pulse duration, SPICLK low (clock polarity = 1)
14
§
Pulse duration, SPICLK low (clock polarity = 0)
ns
Pulse duration, SPICLK high (clock polarity = 1)
15
§
td(SPCH-SOMI)S
Delay time, SPICLK high to SPISOMI valid
(clock polarity = 0)
0.375tc(SPC)S
–
10
ns
td(SPCL-SOMI)S
Delay time, SPICLK low to SPISOMI valid (clock polarity = 1)
0.375tc(SPC)S
–
10
16
§
tv(SPCL-SOMI)S
Valid time, SPISOMI data valid after SPICLK low
(clock polarity =0)
0.75tc(SPC)S
ns
tv(SPCH-SOMI)S
Valid time, SPISOMI data valid after SPICLK high
(clock polarity =1)
0.75tc(SPC)S
19
§
tsu(SIMO-SPCL)S
tsu(SIMO-SPCH)S
Setup time, SPISIMO before SPICLK low (clock polarity = 0)
0
ns
Setup time, SPISIMO before SPICLK high (clock polarity = 1)
0
20
§
tv(SPCL-SIMO)S
Valid time, SPISIMO data valid after SPICLK low
(clock polarity = 0)
0.5tc(SPC)S
ns
tv(SPCH-SIMO)S
Valid time, SPISIMO data valid after SPICLK high
(clock polarity = 1)
0.5tc(SPC)S
The MASTER/SLAVE bit (SPICTL.2) is cleared and the CLOCK PHASE bit (SPICTL.3) is cleared.
tc = system clock cycle time = 1/CLKOUT = tc(CO)
§
The active edge of the SPICLK signal referenced is controlled by the CLOCK POLARITY bit (SPICCR.6).
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