ata5279n ATMEL Corporation, ata5279n Datasheet - Page 15

• Manufacturer Part Number: ata5279n
• Description: Antenna Driver For Multiple Antennas
• Manufacturer: ATMEL Corporation

Figure 3-10. SPI Operation in POL = 1 and PHA = 1 Mode
3.7.1
Figure 3-11. Timing Parameters of the SPI Communication
9125C–RKE–01/09
S_CLK
S_CS
MISO
MOSI
Timing
S_CLK
S_CS
MISO
MOSI
Z
X X
X
X
The configuration mode can be selected with the appropriate SPI command (see
“General Command Description” on page
always in its default configuration (POL = 1, PHA = 1), which must be used to alter the configu-
ration. At the end of the SPI configuration-changing command, the new configuration is
activated with the falling edge of the S_CS signal.
Figure 3-11
Z
X
Note:
Setup
t
CS,set
t
setup
Sample
LSB
The diagram above is using POL = 0 and PHA = 0 as a setup for the SPI. The values are also
valid for the other three configurations. The limits for the timing values shown above can be found
in
LSB
Section 6. “Functional Parameters” on page
t
t
illustrates the timing parameters of the SPI communication.
hold
hi
t
SPI
t
Io
1
1
2
t
out,valid
6
3
20). Note that after power-up or a reset, the IC is
MSB
ATA5279N [Preliminary]
4
28.
t
MISOoff
t
CShold
X
X
5
t
SPIoff
X
X
6
t
MISOon
MSB
Section 3.9.2
Z
X
15