Cirrus Logic CS4341 - Manual (Page 13)

CS4341
DS298F5 13
SWITCHING CHARACTERISTICS - CONTROL PORT INTERFACE (SPI™)
Notes: 10. t
spi
only needed before first falling edge of CS after RST rising edge. t
spi
= 0 at all other times.
11. Data must be held for sufficient time to bridge the transition time of CCLK.
12. For f
sclk
< 1 MHz.
Parameter Symbol Min Max Unit
SPI Mode
CCLK Clock Frequency f
sclk
- 6 MHz
RST Rising Edge to CS Falling t
srs
500 - ns
CCLK Edge to CS Falling (Note 10)
t
spi
500 - ns
CS High Time Between Transmissions t
csh
1.0 - µs
CS Falling to CCLK Edge t
css
20 - ns
CCLK Low Time t
scl
- ns
CCLK High Time t
sch
- ns
CDIN to CCLK Rising Setup Time t
dsu
40 - ns
CCLK Rising to DATA Hold Time (Note 11) t
dh
15 - ns
Rise Time of CCLK and CDIN (Note 12) t
r2
- 100 ns
Fall Time of CCLK and CDIN (Note 12) t
f2
- 100 ns
1
MCLK
-----------------
1
MCLK
-----------------
t r2 t f2
t dsu t dh
t sch t scl
CS
CCLK
CDIN
t css
t csh
t spi
t srs RST
Figure 15. Control Port Timing - SPI Mode