AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 1270

• Manufacturer Part Number: AT32UC3C1512C Automotive
• Manufacturer: Atmel Corporation

Table 40-47. USART in SPI mode Timing, Slave Mode
Note:
9166C–AVR-08/11
Symbol
USPI6
USPI7
USPI8
USPI9
USPI10
USPI11
USPI12
USPI13
USPI14
USPI15
SPCK, CPOL=0
SPCK, CPOL=1
1. These values are based on simulation and characterization of other AVR microcontrollers manufactured in the same pro-
2. Where:
cess technology. These values are not covered by test limits in production.
Parameter
SPCK falling to MISO delay
MOSI setup time before SPCK rises
MOSI hold time after SPCK rises
SPCK rising to MISO delay
MOSI setup time before SPCK falls
MOSI hold time after SPCK falls
NSS setup time before SPCK rises
NSS hold time after SPCK falls
NSS setup time before SPCK falls
NSS hold time after SPCK rises
t
NSS
SAMPLE
Figure 40-9. USART in SPI Slave Mode With (CPOL= CPHA= 0) or (CPOL= CPHA= 1)
Figure 40-10. USART in SPI Slave Mode NPCS Timing
=
t
SPCK
USPI12
USPI14
–
⎛
⎝
------------------------------------
2 t
×
t
CLKUSART
SPCK
SPCK
MISO
MOSI
+
1
-- -
2
⎞
⎠
(1)
×
t
CLKUSART
USPI9
Conditions
capacitor =
external
USPI10
40pF
USPI11
t
t
SAMPLE
SAMPLE
(2)
(2)
Min
35
35
+ t
+ t
0
0
0
0
CLK_USART
CLK_USART
USPI13
USPI15
AT32UC3C
Max
28.5
30
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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