Rainbow Electronics AT89LP214 - Manual (Page 79)

79
3538A–MICRO–7/06
AT89LP213/214 [Preliminary]
Figure 24-4. SPI Slave Timing (CPHA = 1)
24.4 External Clock Drive
Figure 24-5. External Clock Drive Waveform
SS
SCK
(CPOL = 0)
SCK
(CPOL = 1)
MISO
MOSI
t
SCK
t
SSE
t
SHSL
t
SHSL
t
SLSH
t
SLSH
t
SSD
t
SIH
t
SIS
t
SOE
t
SOV
t
SOH
t
SOX
t
SF
t
SR
Symbol Parameter
V
CC
= 2.4V to 5.5V
Units Min Max
1/t
CLCL
Oscillator Frequency 0 20 MHz
t
CLCL
Clock Period 50 ns
t
CHCX
High Time 12 ns
t
CLCX
Low Time 12 ns
t
CLCH
Rise Time 5 ns
t
CHCL
Fall Time 5 ns