Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK Data Sheet
Product codes
ATSAM4L-XSTK
1165
42023E–SAM–07/2013
ATSAM4L8/L4/L2
Table 42-59. USART1 in SPI mode Timing, Slave Mode
(1)
Symbol
Parameter
Conditions
Min
Max
Units
USPI6
SPCK falling to MISO delay
V
VDDIO
from
3.0V to 3.6V,
maximum
external
capacitor =
40pF
373.58
ns
USPI7
MOSI setup time before SPCK rises
4.16 + t
SAMPLE
(2)
+
t
CLK_USART
USPI8
MOSI hold time after SPCK rises
46.69 -( t
SAMPLE
(2)
+
t
CLK_USART )
USPI9
SPCK rising to MISO delay
373.54
USPI10
MOSI setup time before SPCK falls
4.16 +( t
SAMPLE
(2)
+
t
CLK_USART )
USPI11
MOSI hold time after SPCK falls
46.69 -( t
SAMPLE
(2)
+
t
CLK_USART )
USPI12
NSS setup time before SPCK rises
200.43
USPI13
NSS hold time after SPCK falls
-16.5
USPI14
NSS setup time before SPCK falls
200.43
USPI15
NSS hold time after SPCK rises
-16.5
Table 42-60. USART2 in SPI mode Timing, Slave Mode
(1)
Symbol
Parameter
Conditions
Min
Max
Units
USPI6
SPCK falling to MISO delay
V
VDDIO
from
3.0V to 3.6V,
maximum
external
capacitor =
40pF
770.02
ns
USPI7
MOSI setup time before SPCK rises
136.56 + t
SAMPLE
(2)
+
t
CLK_USART
USPI8
MOSI hold time after SPCK rises
47.9 -( t
SAMPLE
(2)
+
t
CLK_USART )
USPI9
SPCK rising to MISO delay
570.19
USPI10
MOSI setup time before SPCK falls
136.73 +( t
SAMPLE
(2)
+
t
CLK_USART )
USPI11
MOSI hold time after SPCK falls
47.9 -( t
SAMPLE
(2)
+
t
CLK_USART )
USPI12
NSS setup time before SPCK rises
519.87
USPI13
NSS hold time after SPCK falls
-1.83
USPI14
NSS setup time before SPCK falls
519.87
USPI15
NSS hold time after SPCK rises
-1.83