KITMMA9550LEVM Freescale Semiconductor, KITMMA9550LEVM Datasheet - Page 22

• Manufacturer Part Number: KITMMA9550LEVM
• Description: Acceleration Sensor Development Tools EVM KIT FOR MMA9550L
• Manufacturer: Freescale Semiconductor

Specifications of KITMMA9550LEVM

• Rohs: yes
• Tool Is For Evaluation Of: MMA955xL
• Acceleration: 2 g, 4 g, 8 g
• Sensing Axis: Triple Axis
• Interface Type: I2C, SPI
• Operating Voltage: 1.8 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Current: 3.1 mA
• Output Type: Analog, Digital

Table 15. Slave SPI timing
MMA955xL
22
4.15
The following table describes the timing requirements for the SPI system. The “#” column refers to the numbered time period in
Figure
—
10
11
12
#
1
2
3
4
5
6
7
8
9
(OUTPUT)
(INPUT)
13.
(INPUT)
(INPUT)
NOTE:
SCLK
SDO
SDI
Operating frequency
Data-hold time (outputs)
Rise time
Fall time
SCLK period
Enable lead time
Enable lag time
Clock (SCLK) high or low time
Data setup time (inputs)
Data-hold time (inputs)
Access time
SDO-disable time
Data valid (after SCLK edge)
1. Not defined but normally MSB of character just received.
Slave SPI Timing
SS
Input
Output
Input
Output
SLAVE
2
5
7
MSB IN
MSB OUT
Function
6
4
1
Figure 13. SPI slave timing
4
BIT 6 . . . 1
BIT 6 . . . 1
9
12
Symbol
t
WSCLK
t
t
SCLK
t
10
Lead
t
t
t
t
t
f
Lag
t
t
HO
RO
t
SU
dis
FO
op
t
t
HI
RI
FI
a
v
SLAVE LSB OUT
LSB IN
11
10
Min
200
0.5
0.5
15
25
—
—
—
—
—
—
—
3
0
4
0
Freescale Semiconductor, Inc.
NOTE
SEE
F
Max
OPH
—
—
—
—
—
—
25
25
25
—
25
25
25
25
/4
8
t
t
t
Sensors
Unit
CYCH
CYCH
CYCH
Hz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns