Analog Devices ADXL180 iMEMS Manual page 31

PHASE 1
1 2
Table 30. Phase 2 Mode 2 Sensor and Device Data Coding
8-Bit Data
Decimal Hex Decimal
+127 0x7F +508
+126 0x7E +504
+125 0x7D +500
+124 0x7C +496
+123 0x7B +492
+122 0x7A +488
+121 0x79 +484
+120 0x78 +480
+119 0x77 +476
+118 0x76 +472
+117 0x75 +468
+116 0x74 +464
+115 0x73 +460
... ... ...
0 0x00 0
... ... ...
−115 0x8D −460
−116 0x8C −464
−117 0x8B −468
−118 0x8A −472
−119 0x89 −476
−120 0x88 −480
−121 0x87 −484
−122 0x86 −488
−123 0x85 −492
−124 0x84 −496
−125 0x83 −500
3 4 5 6 7 8 9 10 11 12 13 14
USER BITS
33 34 35 36 37 38 39 40 41 42 43 44
Figure 24. Phase 2 Mode 2 Device Data Transmission
10-Bit Data
Hex Data Type
0x1FC Undefined
0x1F8 Undefined
0x1F4 Error code
0x1F0 Undefined
0x1EC Undefined
0x1E8 Logic 0
0x1E4 Logic 1
0x1E0 Undefined
0x1DC Undefined
0x1D8 Undefined
0x1D4 Undefined
0x1D0 Acceleration data
0x1CC Acceleration data
... ...
0x 000 Acceleration data
... ...
0x234 Acceleration data
0x230 Acceleration data
0x22C Undefined
0x228 Undefined
0x224 Undefined
0x220 Undefined
0x21C Undefined
0x218 Status code
0x214 Undefined
0x210 Undefined
0x20C Status code
PHASE 2
SERIAL NUMBER
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
45 46 47 48 49 50 51 52
Description
Unused
Unused
Device error
Unused
Device OK
Device data : Logic 0
Device data : Logic 1
Unused
Unused
Unused
Unused
Most positive (+FS) acceleration value
Zero (0) acceleration value
Most negative (−FS) acceleration value
Unused
Unused
Unused
Unused
Unused
±250 g measurement range
Unused
Unused
±50 g measurement range
Rev. 0 | Page 31 of 56
PHASE 3
ST DATA/
STATUS
30 31 32
DELIMITER
ADXL180