Maxim Integrated MAX32664A - Table 9. Format of Received Samples-Hr;Spo; Algorithm

Maxim Integrated Page 14 of 15
Table 9. Format of Received Samples—HR/SpO
2
Algorithm
*If the output mode includes the sensor.
**If the output mode includes the algorithm.
DATA SOURCE BYTE INDEX DATA ITEM
# OF BYTES
(MSB FIRST)
DESCRIPTION
MAX30101
(12 Bytes)*
0
LED1
3
IR counter
3
LED2
3
Red counter
6
LED3
3
N/A
9
LED4
3
N/A
Accelerometer
(6 Bytes)*
12 accelX 2
Two's complement. LSB =
0.001g
14 accelY 2
Two's complement. LSB =
0.001g
16 accelZ 2
Two's complement. LSB =
0.001g
HR/SpO
2
Algorithm
(6 Bytes)**
18
Heart rate
2
10x heart-rate value
20
Heart rate
confidence
1
Calculated confidence level
in %
21
SpO
2
2
10x SpO
2
value
23
Algorithm
state
1
Algorithm current state:
0: No object is detected
1: Something is on sensor
2: Another object is detected
3: Finger is detected