ADSP-21262_05 AD [Analog Devices], ADSP-21262_05 Datasheet - Page 34
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ADSP-21262_05
Manufacturer Part Number
ADSP-21262_05
Description
Embedded Processor
Manufacturer
AD [Analog Devices]
Datasheet
1.ADSP-21262_05.pdf
(48 pages)
- Current page: 34 of 48
- Download datasheet (2Mb)
ADSP-21262
SPI Protocol—Master
Table 29. SPI Protocol—Master
Parameter
Timing Requirements
t
t
Switching Characteristics
t
t
t
t
t
t
t
t
SSPIDM
HSPIDM
SPICLKM
SPICHM
SPICLM
DDSPIDM
HDSPIDM
SDSCIM
HDSM
SPITDM
CPHASE = 1
CPHASE = 0
(OUTPUT)
(OUTPUT)
(OUTPUT)
(OUTPUT)
(OUTPUT)
SPICLK
(CP = 0)
SPICLK
(CP = 1)
(INPUT)
(INPUT)
FLG3-0
MISO
MOSI
MOSI
MISO
t
S S P I D M
Data Input Valid to SPICLK Edge (Data Input Setup Time)
SPICLK Last Sampling Edge to Data Input Not Valid
Serial Clock Cycle
Serial Clock High Period
Serial Clock Low Period
SPICLK Edge to Data Out Valid (Data Out Delay Time)
SPICLK Edge to Data Out Not Valid (Data Out Hold Time)
FLAG3–0 OUT (SPI Device Select) Low to First SPICLK Edge
Last SPICLK Edge to FLAG3–0 OUT High
Sequential Transfer Delay
t
S D S C I M
VALID
MSB
t
t
MSB
S P I C H M
S P IC LM
VALID
MSB
t
H S P ID M
t
t
D D S P I D M
t
t
S S P ID M
MSB
S P IC LM
S P I C H M
t
D D S P I D M
Rev. B | Page 34 of 48 | August 2005
t
Figure 25. SPI Protocol—Master
H S P I D M
t
H D S P I D M
t
t
S S P I D M
HDSPIDM
t
VALID
S P IC LK M
LSB
LSB
VALID
LSB
Min
5
2
8 × t
4 × t
4 × t
10
4 × t
4 × t
4 × t
t
H D S M
LSB
CCLK
CCLK
CCLK
CCLK
CCLK
CCLK
t
– 2
– 2
– 2
– 1
– 1
H S P I D M
t
S P I T D M
Max
3
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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