SPIM Electrical specification

Timing specifications


Symbol	Description	Min.	Typ.	Max.	Units
f_SPIM	Bit rates for SPIM¹			8	Mbps
f_SPIM,HS	Bit rates for high-speed SPIM instances²			32³	Mbps
t_SPIM,START	Time from START task to transmission started		1		µs
t_SPIM,CSCK	SCK period	31.25			ns
t_SPIM,RSCK,LD	SCK rise time, standard drive^{^a}			t_RF,25pF
t_SPIM,RSCK,HD	SCK rise time, high drive^{^a}			t_HRF,25pF
t_SPIM,FSCK,LD	SCK fall time, standard drive^{^a}			t_RF,25pF
t_SPIM,FSCK,HD	SCK fall time, high drive^{^a}			t_HRF,25pF
t_SPIM,WHSCK	SCK high time^{^a}	(t_CSCK/2) - t_RSCK - 1.5 ns
t_SPIM,WLSCK	SCK low time^{^a}	(t_CSCK/2) - t_FSCK - 1.5 ns

¹ High bit rates may require GPIOs to be set as High Drive or Extra High Drive, see GPIO chapter for more details.

² High bit rates may require GPIOs to be set as High Drive or Extra High Drive, see GPIO chapter for more details.

³ For SPIM00 using GPIO port P2.

⁴ At 25pF load, including GPIO pin capacitance, see GPIO spec.


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	73		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		28	ns
t_SPIM,HMO	SDO hold time after CLK edge	-8		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	70		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		28	ns
t_SPIM,HMO	SDO hold time after CLK edge	-6		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	43		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		14	ns
t_SPIM,HMO	SDO hold time after CLK edge	-12		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	39		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		12	ns
t_SPIM,HMO	SDO hold time after CLK edge	-10		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	43		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		14	ns
t_SPIM,HMO	SDO hold time after CLK edge	-12		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	39		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		12	ns
t_SPIM,HMO	SDO hold time after CLK edge	-10		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	15		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		3	ns
t_SPIM,HMO	SDO hold time after CLK edge	-1		ns