Datasheet

92
XMEGA A1U [DATASHEET]
Atmel-8385H-AVR-ATxmega64A1U-128A1U-Datasheet–AVR–04/2014
Table 37-30. SPI timing characteristics and requirements.
Symbol Parameter Condition Min. Typ. Max. Units
t
SCK
SCK period Master
(See Table 21-4 in
XMEGA AU Manual)
ns
t
SCKW
SCK high/low width Master 0.5*SCK
t
SCKR
SCK rise time Master 2.7
t
SCKF
SCK fall time Master 2.7
t
MIS
MISO setup to SCK Master 11
t
MIH
MISO hold after SCK Master 0
t
MOS
MOSI setup SCK Master 0.5*SCK
t
MOH
MOSI hold after SCK Master 1
SCK to out high Master 1
t
SSCK
Slave SCK period Slave 4*t
ClkPER
t
SSCKW
SCK high/low width Slave 2*t
ClkPER
t
SSCKR
SCK rise time Slave 1600
t
SSCKF
SCK fall time Slave 1600
t
SIS
MOSI setup to SCK Slave 3
t
SIH
MOSI hold after SCK Slave t
SCK
t
SSS
SS setup to SCK Slave 20
t
SSH
SS hold after SCK Slave 20
t
SOS
MISO setup SCK Slave 8
t
SOH
MISO hold after SCK Slave 13
t
SOSS
MISO setup after SS low Slave 11
t
SOSH
MISO hold after SS high Slave 8