参数资料
型号: TMR320R2812ZHHA
厂商: Texas Instruments, Inc.
元件分类: 圆形连接器
英文描述: Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:D38999 Series III; No. of Contacts:6; Connector Shell Size:9; Connecting Termination:Crimp; Circular Shell Style:Jam Nut Receptacle RoHS Compliant: No
中文描述: TMS320R2811,TMS320R2812数字信号处理器
文件页数: 107/147页
文件大小: 2021K
代理商: TMR320R2812ZHHA
E
1
S
Table 6
21. SPI Master Mode External Timing (Clock Phase = 1)
NO.
SPI WHEN (SPIBRR + 1) IS EVEN
OR SPIBRR = 0 OR 2
SPI WHEN (SPIBRR + 1)
IS ODD AND SPIBRR > 3
UNIT
MIN
MAX
128t
c(LCO)
MIN
MAX
1
t
c(SPC)M
Cycle time, SPICLK
Pulse duration, SPICLK high
(clock polarity = 0)
4t
c(LCO)
5t
c(LCO)
127t
c(LCO)
ns
2
§
t
w(SPCH)M
0.5t
c(SPC)M
10
0.5t
c(SPC)M
0.5t
c(SPC)M
0.5t
c(LCO)
10
0.5t
c(SPC)M
0.5t
c(LCO)
ns
t
w(SPCL)M
Pulse duration, SPICLK low
(clock polarity = 1)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
0.5t
c(SPC)M
0.5t
c(LCO)
10
0.5t
c(SPC)M
0.5t
c(LCO)
3
§
t
w(SPCL)M
Pulse duration, SPICLK low
(clock polarity = 0)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
0.5t
c(SPC)M
+0.5t
c(LCO)
10
0.5t
c(SPC)M
+ 0.5t
c(LCO)
ns
t
w(SPCH)M
Pulse duration, SPICLK high
(clock polarity = 1)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
0.5t
c(SPC)M
+0.5t
c(LCO)
10
0.5t
c(SPC)M
+ 0.5t
c(LCO)
6
§
t
su(SIMO-SPCH)M
Setup time, SPISIMO data
valid before SPICLK high
(clock polarity = 0)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
10
ns
t
su(SIMO-SPCL)M
Setup time, SPISIMO data
valid before SPICLK low
(clock polarity = 1)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
10
7
§
t
v(SPCH-SIMO)M
Valid time, SPISIMO data
valid after SPICLK high
(clock polarity = 0)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
10
ns
t
v(SPCL-SIMO)M
Valid time, SPISIMO data
valid after SPICLK low
(clock polarity = 1)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
10
10
§
t
su(SOMI-SPCH)M
Setup time, SPISOMI before
SPICLK high
(clock polarity = 0)
0
0
ns
t
su(SOMI-SPCL)M
Setup time, SPISOMI before
SPICLK low
(clock polarity = 1)
0
0
11
§
t
v(SPCH-SOMI)M
Valid time, SPISOMI data
valid after SPICLK high
(clock polarity = 0)
Valid time, SPISOMI data
valid after SPICLK low
(clock polarity = 1)
0.25t
c(SPC)M
10
0.5t
c(SPC)M
10
ns
t
v(SPCL-SOMI)M
0.25t
c(SPC)M
10
0.5t
c(SPC)M
10
The MASTER/SLAVE bit (SPICTL.2) is set and the CLOCK PHASE bit (SPICTL.3) is set.
t
c(SPC)
= SPI clock cycle time = LS4
t
c(LCO)
= LSPCLK cycle time
§
The active edge of the SPICLK signal referenced is controlled by the CLOCK POLARITY bit (SPICCR.6).
NOTE: Internal clock prescalers must be adjusted such that the SPI clock speed is not greater than the I/O buffer speed limit (20 MHz).
or
LSPCLK
(SPIBRR
1)
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