Data Sheet

FSC‐BT630Datasheet
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‐22‐
Constantlatencymode
 
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.
 
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Table12:SerialPeripheralInterfaceSlave(SPIS)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
SPIS,RFSCKIN
‐  SCKinputrise/falltime   30 nS
t
SPIS,WHSCKIN
‐  SCKinputhightime30nS
t
SPIS,WLSCKIN
‐  SCKinputlowtime  30  nS
t
SPIS,SUCSN,LP
‐  CSNtoCLKsetuptime,Lowpowermode

tSPIS,SUCSN,CL
+
tSTART_HFINT
 nS
t
SPIS,SUCSN,CL
‐CSNtoCLKsetuptime,Constantlatencymode  1000  nS
t
SPIS,HCSN
‐  CLKtoCSNholdtime2000nS
t
SPIS,ASO
‐  CSNtoMISOdriven
a
   1000 nS
t
SPIS,DISSO
‐  CSNtoMISOdisabled
a
68 nS
t
SPIS,CWH
‐  CSNinactivetime  300  nS
t
SPIS,VSO
‐  CLKedgetoMISOvalid19 nS
t
SPIS,HSO
‐  MISOholdtimeafterCLKedge18
b
nS
t
SPIS,SUSI
‐   MOSItoCLKedgesetuptime59nS
t
SPIS,HSI
‐  CLKedgetoMOSIholdtime20nS

a:At25pFload,includingGPIOcapacitance,seeGPIOspec.
b:ThisistoensurecompatibilitytoSPImasterssamplingMISOonthesameedgeasMOSIisoutput
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    
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 5.6I2CDynamicCharacteristics
5.6.1I2CMasterinterfaceelectricalspecifications
Table13:I2Cinterfaceelectricalspecifications(Master)
Parameter Min Typ Max Unit
f
I2C
‐  BitratesforI2C
a
 100‐400 Kbps
I
I2C,100kbps
‐  RuncurrentforI2C,100kbps ‐ 50 ‐ μA
I
I2C,400kbps
‐  RuncurrentforI2C,400kbps‐50‐μA
t
I2C,START,LP
‐  TimefromSTARTRX/STARTTXtasktotransmissionstarted,
Lowpowermode ‐
T
I2C,START,CL

+
t
START_HFINT

‐ μS