Data Sheet

FSC‐BT630Datasheet

 ShenzhenFeasycomTechnologyCo.,Ltdwww.feasycom.com
‐21‐
t
SPI,START,CL
‐  TimefromwritingTXDregistertotransmissionstarted,
constantlatencymode
‐ 1 ‐
uS
 
a:HigherbitratesmayrequireGPIOstobesetasHighDrive,seeGPIOchapterformoredetails.
b:Theactualmaximumdataratedependsontheslave'sCLKtoMISOandMOSIsetupandholdtimings.
 


Table10:SerialPeripheralInterface(SPI)Mastertimingspecifications
Parameter Min Typ Max Unit
t
SPI,CSCK,8Mbps
‐  SCKperiodat8Mbps‐125‐nS
t
SPI,CSCK,4Mbps
‐  SCKperiodat4Mbps ‐ 250 ‐ nS
t
SPI,CSCK,2Mbps
‐  SCKperiodat2Mbps‐500‐nS
t
SPI,RSCK,LD
‐  SCKrisetime,lowdrive
a
 ‐ ‐ t
RF,25pF
 
t
SPI,RSCK,HD
‐  SCKrisetime,highdrive
a
‐‐t
HRF,25pF

t
SPI,FSCK,LD
‐  SCKfalltime,lowdrive
a
 ‐ ‐ t
RF,25pF
 
t
SPI,FSCK,HD
‐  SCKfalltime,highdrive
a
‐‐t
HRF,25pF

tSPI,WHSCK‐  SCKhightime
a
 (0.5*tCSCK)
–tRSCK
 

t
SPI,WLSCK
‐  SCKlowtime
a
 (0.5*tCSCK)
–tFSCK


t
SPI,SUMI
‐  MISOtoCLKedgesetuptime 19   ns
t
SPI,HMI
‐  CLKedgetoMISOholdtime 18ns
t
SPI,VMO
‐  CLKedgetoMOSIvalid   59 ns
t
SPI,HMO
‐  MOSIholdtimeafterCLKedge 20ns

a:At25pFload,includingGPIOcapacitance,seeGPIOspec.
    




5.5.2SPIslaveinterfaceelectricalspecifications
Table11:SPIslaveinterfaceelectricalspecifications
Parameter Min Typ Max Unit
f
SPI
‐  BitratesforSPI
a
‐‐8
b
 Mbps
I
SPI,2Mbps
‐  RuncurrentforSPI,2Mbps ‐ 45 ‐ μA
I
SPI,8Mbps
‐  RuncurrentforSPI,8Mbps‐45‐μA
I
SPI,IDLEIdle
‐  currentforSPI(STARTed,noCSNactivity) ‐ 1 ‐ μA
t
SPIS,LP,START
‐  TimefromRELEASEtasktoreadytoreceive/transmit(CSN
active),Lowpowermode‐
t
SPIS,CL,START

+
t
START_HFINT

‐ μS
t
SPIS,CL,START
‐  TimefromRELEASEtasktoreceive/transmit(CSNactive), ‐ 0.125 ‐ uS