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org.bluetooth.characteristic.cgm_feature

Last Modified: 2014-11-17 Approved: Yes

Name: CGM Feature

Type: org.bluetooth.characteristic.cgm_featureDownload / View

Assigned Number: 0x2AA8

Value Fields

Names Field Requirement Format Minimum Value Maximum Value Additional Information
CGM Feature
Information:
Byte Order - LSO...MSO
Exponent: Decimal, 0
Mandatory
24bit N/A N/A
Bit Field
Bit Size Name
Definition
Key Value
0 1 Calibration Supported
0 False
1 True
1 1 Patient High/Low Alerts supported
0 False
1 True
2 1 Hypo Alerts supported
0 False
1 True
3 1 Hyper Alerts supported
0 False
1 True
4 1 Rate of Increase/Decrease Alerts supported
0 False
1 True
5 1 Device Specific Alert supported
0 False
1 True
6 1 Sensor Malfunction Detection supported
0 False
1 True
7 1 Sensor Temperature High-Low Detection supported
0 False
1 True
8 1 Sensor Result High-Low Detection supported
0 False
1 True
9 1 Low Battery Detection supported
0 False
1 True
10 1 Sensor Type Error Detection supported
0 False
1 True
11 1 General Device Fault supported
0 False
1 True
12 1 E2E-CRC supported
0 False
1 True
13 1 Multiple Bond supported
0 False
1 True
14 1 Multiple Sessions supported
0 False
1 True
15 1 CGM Trend Information supported
0 False
1 True
16 1 CGM Quality supported
0 False
1 True
17 7 Reserved for future use
CGM Type
Information:
See Note number 2 below.
Mandatory
4bit N/A N/A
Enumerations
Key Value
0 Reserved for future use
1 Capillary Whole blood
2 Capillary Plasma
3 Capillary Whole blood
4 Venous Plasma
5 Arterial Whole blood
6 Arterial Plasma
7 Undetermined Whole blood
8 Undetermined Plasma
9 Interstitial Fluid (ISF)
10 Control Solution
11 - 15 Reserved for future use
CGM Sample Location
Information:
See Note number 2 below.
Mandatory
4bit N/A N/A
Enumerations
Key Value
0 Reserved for future use
1 Finger
2 Alternate Site Test (AST)
3 Earlobe
4 Control solution
5 Subcutaneous tissue
15 Sample Location value not available
6 - 14 Reserved for future use
E2E-CRC
Information:
If the device supports E2E-safety (E2E-CRC Supported bit is set in CGM Feature), the feature are secured by a CRC calculated over all data. This field is mandatory in this characteristic. If the device doesn´t support E2E-safety the value of the field shall be set to 0xFFFF.
Exponent: Decimal, 0
Mandatory
uint16 N/A N/A None

Note:

1. The fields in the above table are in the order of LSO to MSO. Where LSO = Least Significant Octet and MSO = Most Significant Octet

2. The CGM Type and CGM Sample Location Fields are each a nibble (4bit), where the least significant nibble contains the Type and the most significant nibble contains the Sample Location. These two nibbles are packed as one single octet, the Least Significant Nibble means the four bits numbered 0, 1, 2 and 3 of the octet and the Most Significant Nibble means the four bits numbered 4, 5, 6 and 7 of that octet