Specifications

ADXL345 Data Sheet
Rev. D | Page 16 of 40
07925-017
t
DELAY
t
SETUP
t
HOLD
t
SDO
XXX
W
MB A5 A0 D7 D0
XX X
ADDRESS BITS DATA BITS
t
SCLK
t
M
t
S t
QUIET
t
DIS
t
CS,DIS
S
CL
K
SDI
SDO
CS
Figure 37. SPI 4-Wire Write
07925-018
CS
XXX
RMBA5
A0
D7
D0X
X
X
ADDRESS BITS
DATA BITS
t
DIS
SCL
K
SDI
SDO
t
QUIET
t
CS,DIS
t
SDO
t
SETUP
t
HOLD
t
DELAY
t
SCLK
t
M
t
S
Figure 38. SPI 4-Wire Read
07925-019
CS
t
DELAY
t
SETUP
t
HOLD
t
SDO
R/W MB A5 A0 D7 D0
ADDRESS BITS DATA BITS
t
SCLK
t
M
t
S
t
QUIET
t
CS,DIS
SCL
K
SDIO
SDO
NOTES
1.
t
SDO
IS ONLY PRESENT DURING READS.
Figure 39. SPI 3-Wire Read/Write