Analog Devices ADXL180 iMEMS, Manual

Page: 31 / 56

ADXL180
Rev. 0 | Page 31 of 56
PHASE 2 PHASE 3
PHASE 1
ST DATA/
STATUS
D
E
LI
M
ITE
R
S
E
RI
AL
NUM
BE
R
/
US
E
R
DAT
A
S
E
RI
AL
NUM
BE
R
/
US
E
R
DAT
A
S
E
RI
AL
NUM
BE
R
/
US
E
R
DAT
A
S
E
RI
AL
NUM
BE
R
/
US
E
R
DAT
A
S
E
RI
AL
NUM
BE
R
/
US
E
R
DAT
A
S
E
RI
AL
NUM
BE
R
/
US
E
R
DAT
A
S
E
RI
AL
NUM
BE
R
/
US
E
R
DAT
A
S
E
RI
AL
NUM
BE
R
/
US
E
R
DAT
A
1 2 31 32 3 4 5 6 7 8 9 10 11 12 13 14
33 34 39 40 41 42 43 44 45 46 47 48 49 50 51 52
15 16 17 18 19 21 22 23 24 25 26 27 28 29 20 30
DELIMITER
USER BITS
IM IM IM IM IM IM
IM
IM
SN
31
SN
30
SN
29
SN
28
SN
27
SN
26
SN
25
SN
24
SN
23
SN
22
SN
21
SN
20
SN
19
SN
18
SN
17
SN
16
SN
15
SN
14
SN
13
SN
12
SN
11
SN
10
SN
09
SN
08
SN
07
SN
06
SN
05
SN
04
SN
03
SN
02
SN
01
SN
00
SERIAL NUMBER
35 36 37 38
U11 U10 U09 U08 U07 U06 U05 U04 U03 U02 U01 U00
DE
L
DE
L
DE
L
DE
L
DE
L
DE
L
DE
L
DE
L
0
75
44
-04
5
Figure 24. Phase 2 Mode 2 Device Data Transmission
Table 30. Phase 2 Mode 2 Sensor and Device Data Coding
8-Bit Data 10-Bit Data
Data Type Description Decimal Hex Decimal Hex
+127 0x7F +508 0x1FC Undefined Unused
+126 0x7E +504 0x1F8 Undefined Unused
+125 0x7D +500 0x1F4 Error code Device error
+124 0x7C +496 0x1F0 Undefined Unused
+123 0x7B +492 0x1EC Undefined Device OK
+122 0x7A +488 0x1E8 Logic 0 Device data : Logic 0
+121 0x79 +484 0x1E4 Logic 1 Device data : Logic 1
+120 0x78 +480 0x1E0 Undefined Unused
+119 0x77 +476 0x1DC Undefined Unused
+118 0x76 +472 0x1D8 Undefined Unused
+117 0x75 +468 0x1D4 Undefined Unused
+116 0x74 +464 0x1D0 Acceleration data Most positive (+FS) acceleration value
+115 0x73 +460 0x1CC Acceleration data
… … … … …
0 0x00 0 0x 000 Acceleration data Zero (0) acceleration value
… … … … …
−115 0x8D −460 0x234 Acceleration data
−116 0x8C −464 0x230 Acceleration data Most negative (−FS) acceleration value
−117 0x8B −468 0x22C Undefined Unused
−118 0x8A −472 0x228 Undefined Unused
−119 0x89 −476 0x224 Undefined Unused
−120 0x88 −480 0x220 Undefined Unused
−121 0x87 −484 0x21C Undefined Unused
−122 0x86 −488 0x218 Status code
±
250 g measurement range
−123 0x85 −492 0x214 Undefined Unused
−124 0x84 −496 0x210 Undefined Unused
−125 0x83 −500 0x20C Status code
±
50 g measurement range