33.7 SPI Timing Characteristics

Table 33-8. SPI Timing Parameters

	Description	Mode	Min.	Typ	Max	Units
1	SCK period	Master	-	See Table 23-5	-	ns
2	SCK high/low	Master	-	50% duty cycle	-
3	Rise/Fall time	Master	-	3.6	-
4	Setup	Master	-	10	-
5	Hold	Master	-	10	-
6	Out to SCK	Master	-	0.5 • tsck	-
7	SCK to out	Master	-	10	-
8	SCK to out high	Master	-	10	-
9	SS low to out	Slave	-	15	-
10	SCK period	Slave	4 • tck	-	-
11	SCK high/low(1)	Slave	2 • tck	-	-
12	Rise/Fall time	Slave	-	-	1600
13	Setup	Slave	10	-	-
14	Hold	Slave	tck	-	-
15	SCK to out	Slave	-	15	-
16	SCK to SS high	Slave	20	-	-
17	SS high to tri-state	Slave	-	10	-
18	SS low to SCK	Slave	2 • tck	-	-

Note:

1. In SPI Programming mode the minimum SCK high/low period is:


• 2 t_CLCL for f_CK < 12 MHz

• 3 t_CLCL for f_CK > 12 MHz