SPIM Electrical specification

Timing specifications


Symbol	Description	Min.	Typ.	Max.	Units
f_SPIM	Bit rates for SPIM⁷			8	Mbps
f_SPIM,HS	Bit rates for high-speed SPIM instances⁸			32⁹	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

⁷ High bit rates may require GPIOs to be set as High Drive or Extra High Drive, see GPIO chapter for more details.

⁸ High bit rates may require GPIOs to be set as High Drive or Extra High Drive, see GPIO chapter for more details.

⁹ For SPIM00 using GPIO port P2.

¹⁰ At 25pF load, including GPIO pin capacitance, see GPIO spec.


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	51		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	-4		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	48		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		15	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	38		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		5	ns
t_SPIM,HMO	SDO hold time after CLK edge	-2		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	34		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		8	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	38		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		5	ns
t_SPIM,HMO	SDO hold time after CLK edge	-2		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	34		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		8	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	13		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		2	ns
t_SPIM,HMO	SDO hold time after CLK edge	-1		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	38		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		5	ns
t_SPIM,HMO	SDO hold time after CLK edge	-3		ns


Symbol	Description	Min.	Max.	Units
t_SPIM,SUMI	SDI to CLK edge setup time	35		ns
t_SPIM,HMI	CLK edge to SDI hold time	0		ns
t_SPIM,VMO	CLK edge to SDO valid		7	ns
t_SPIM,HMO	SDO hold time after CLK edge	-5		ns