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MMA5206WR2 数据表(PDF) 40 Page - Freescale Semiconductor, Inc

部件名 MMA5206WR2
功能描述  PSI5 Inertial Sensor
PDF  61 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

MMA5206WR2 数据表(HTML) 40 Page - Freescale Semiconductor, Inc

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Sensors
40
Freescale Semiconductor
MMA52xxWR
Preliminary
4.4.2.2
Initialization Phase 2 (8-Bit Mode)
In PSI5 initialization phase 2, 8-bit mode, the device transmits a sequence of sensor specific configuration and serial number
information. The transmission data uses a format similar to the PSI5 specification, Revision 1.3 10-Bit format modified for 8-bit
transmission. The data content and transmission format is shown in Table 11 and Table 12. Table 11 shows the 8-bit phase 2
timing for different operating modes. Times are calculated using the equation in Section 4.4.2.
Table 11. Initialization Phase 2 Time (8-Bit Mode)
Operating Mode
Repetition Rate (k)
# of Transmissions
Nominal Phase 2 Time
Asynchronous Mode 0 (228
μs)
16
576
131.3 ms
Synchronous Mode (500
μs)
8
288
144.0 ms
Table 12. PSI5 Initialization Phase 2 Data (8-Bit Mode)
PSI5 V1.2
Field ID #
PSI5 V1.2
Nibble ID #
Page
Address
PSI5 Half-Nibble
Address
Register Address
Description
Value
F1
D1 H
0
00
Hard-coded
Protocol Revision = V1.3
01
F1
D1 L
0
01
Hard-coded
Protocol Revision = V1.3
00
F2
D2 H
0
10
Hard-coded
Number of Data Blocks = 9
00
F2
D2 L
0
11
Hard-coded
Number of Data Blocks = 9
10
F2
D3 H
1
00
Hard-coded
Number of Data Blocks = 9
00
F2
D3 L
1
01
Hard-coded
Number of Data Blocks = 9
00
F3
D4 H
1
10
Hard-coded
Satellite Manufacturer = Freescale
01
F3
D4 L
1
11
Hard-coded
Satellite Manufacturer = Freescale
00
F3
D5 H
2
00
Hard-coded
Satellite Manufacturer = Freescale
01
F3
D5 L
2
01
Hard-coded
Satellite Manufacturer = Freescale
10
F4
D6 H
2
10
Hard-coded
Sensor Type = Acceleration (high g)
00
F4
D6 L
2
11
Hard-coded
Sensor Type = Acceleration (high g)
00
F4
D7 H
3
00
Hard-coded
Sensor Type = Acceleration (high g)
00
F4
D7 L
3
01
Hard-coded
Sensor Type = Acceleration (high g)
01
F5
D8 H
3
10
U_DIR[1:0] = 00: 0000
U_DIR[1:0] = 01: 0100
U_DIR[1:0] = 10: 1000
U_DIR[1:0] = 11: 1100 (not used)
Axis
User
F5
D8 L
3
11
User
F5
D9 H
4
00
±60g: 0111
±120g: 1000
±240g: 1001
±480g: 1010
Range
Varies
F5
D9 L
4
01
Varies



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