Datasheet

1162
42023E–SAM–07/2013
ATSAM4L8/L4/L2
Notes: 1. These values are based on simulation. These values are not covered by test limits in production.
2. Where:
Table 42-54. USART0 in SPI Mode Timing, Master Mode
(1)
Symbol Parameter Conditions Min Max Units
USPI0 MISO setup time before SPCK rises
V
VDDIO
from
3.0V to 3.6V,
maximum
external
capacitor =
40pF
123.2 + t
SAMPLE
(2)
ns
USPI1 MISO hold time after SPCK rises 24.74 -t
SAMPLE
(2)
USPI2 SPCK rising to MOSI delay 513.56
USPI3 MISO setup time before SPCK falls 125.99 + t
SAMPLE
(2)
USPI4 MISO hold time after SPCK falls 24.74 -t
SAMPLE
(2)
USPI5 SPCK falling to MOSI delay 516.55
Table 42-55. USART1 in SPI Mode Timing, Master Mode
(1)
Symbol Parameter Conditions Min Max Units
USPI0 MISO setup time before SPCK rises
V
VDDIO
from
3.0V to 3.6V,
maximum
external
capacitor =
40pF
69.28 + t
SAMPLE
(2)
ns
USPI1 MISO hold time after SPCK rises 25.75 -t
SAMPLE
(2)
USPI2 SPCK rising to MOSI delay 99.66
USPI3 MISO setup time before SPCK falls 73.12 + t
SAMPLE
(2)
USPI4 MISO hold time after SPCK falls 28.10 -t
SAMPLE
(2)
USPI5 SPCK falling to MOSI delay 102.01
Table 42-56. USART2 in SPI Mode Timing, Master Mode
(1)
Symbol Parameter Conditions Min Max Units
USPI0 MISO setup time before SPCK rises
V
VDDIO
from
3.0V to 3.6V,
maximum
external
capacitor =
40pF
69.09 + t
SAMPLE
(2)
ns
USPI1 MISO hold time after SPCK rises 26.52 -t
SAMPLE
(2)
USPI2 SPCK rising to MOSI delay 542.96
USPI3 MISO setup time before SPCK falls 72.55 + t
SAMPLE
(2)
USPI4 MISO hold time after SPCK falls 28.37 -t
SAMPLE
(2)
USPI5 SPCK falling to MOSI delay 544.80
Table 42-57. USART3 in SPI Mode Timing, Master Mode
(1)
Symbol Parameter Conditions Min Max Units
USPI0 MISO setup time before SPCK rises
V
VDDIO
from
3.0V to 3.6V,
maximum
external
capacitor =
40pF
147.24 + t
SAMPLE
(2)
ns
USPI1 MISO hold time after SPCK rises 25.80 -t
SAMPLE
(2)
USPI2 SPCK rising to MOSI delay 88.23
USPI3 MISO setup time before SPCK falls 154.9 + t
SAMPLE
(2)
USPI4 MISO hold time after SPCK falls 26.89 -t
SAMPLE
(2)
USPI5 SPCK falling to MOSI delay 89.32
t
SAMPLE
t
SPCK
t
SPCK
2 t
CLKUSART
×
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1
2
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⎝⎠
⎛⎞
t
CLKUSART
×–=