ADSP-BF512/BF514/BF514F16/BF516/BF518/BF518F16
Serial Peripheral Interface (SPI) Port—Master Timing
Table 37 and Figure 26 describe SPI port master operations.
Table 37. Serial Peripheral Interface (SPI) Port—Master Timing
Parameter
Timing Requirements
tSSPIDM
Data Input Valid to SCK Edge (Data Input Setup)
tHSPIDM
SCK Sampling Edge to Data Input Invalid
Switching Characteristics
tSDSCIM
tSPICHM
tSPICLM
tSPICLK
tHDSM
tSPITDM
tDDSPIDM
tHDSPIDM
SPISELx low to First SCK Edge
Serial Clock High Period
Serial Clock Low Period
Serial Clock Period
Last SCK Edge to SPISELx High
Sequential Transfer Delay
SCK Edge to Data Out Valid (Data Out Delay)
SCK Edge to Data Out Invalid (Data Out Hold)
VDDEXT
1.8V Nominal
Min
Max
11.6
–1.5
2 × tSCLK – 1.5
2 × tSCLK – 1.5
2 × tSCLK – 1.5
4 × tSCLK
2 × tSCLK – 1.5
2 × tSCLK– 1.5
6
–1
VDDEXT
2.5 V/3.3V Nominal
Min
Max
Unit
9.6
ns
–1.5
ns
2 × tSCLK – 1.5
ns
2 × tSCLK – 1.5
ns
2 × tSCLK – 1.5
ns
4 × tSCLK
ns
2 × tSCLK – 1.5
ns
2 × tSCLK – 1.5
ns
6
ns
–1
ns
SPIxSELy
(OUTPUT)
SPIxSCK
(OUTPUT)
tSDSCIM
tSPICLM
tSPICHM
tSPICLK
tHDSM
tSPITDM
SPIxMOSI
(OUTPUT)
CPHA = 1
SPIxMISO
(INPUT)
tHDSPIDM
tDDSPIDM
tSSPIDM
tHSPIDM
SPIxMOSI
(OUTPUT)
CPHA = 0
tSSPIDM
SPIxMISO
(INPUT)
tHSPIDM
tHDSPIDM
tDDSPIDM
Figure 26. Serial Peripheral Interface (SPI) Port—Master Timing
Rev. D | Page 43 of 68 | April 2014