AFE4400_15 Datasheet, PDF (57/87 Pages) Texas Instruments – AFE4400 Integrated Analog Front-End for Heart Rate Monitors and Low-Cost Pulse Oximeters

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AFE4400
SBAS601H – DECEMBER 2012 – REVISED JULY 2014
Figure 73. LED2CONVEND: LED2 Convert End Count Register (Address = 0Eh, Reset Value = 0000h)
23
22
21
20
19
18
17
16
15
14
13
12
0
0
0
0
0
0
0
0
LED2CONVEND[15:0]
11
10
9
8
7
6
5
4
3
2
1
0
LED2CONVEND[15:0]
This register sets the end timing value for the LED2 conversion.
Bits 23:16
Bits 15:0
Must be 0
LED2CONVEND[15:0]: LED2 convert end count
The contents of this register can be used to position the end of the LED2 conversion signal
with respect to the PRP, as specified in the PRPCOUNT register. The count is specified as
the number of 4-MHz clock cycles. Refer to the Using the Timer Module section for details.
Figure 74. ALED2CONVST: LED2 Ambient Convert Start Count Register
(Address = 0Fh, Reset Value = 0000h)
23
22
21
20
19
18
17
16
15
14
13
12
0
0
0
0
0
0
0
0
ALED2CONVST[15:0]
11
10
9
8
7
6
5
4
3
2
1
0
ALED2CONVST[15:0]
This register sets the start timing value for the ambient LED2 conversion.
Bits 23:16
Bits 15:0
Must be 0
ALED2CONVST[15:0]: LED2 ambient convert start count
The contents of this register can be used to position the start of the LED2 ambient
conversion signal with respect to the PRP, as specified in the PRPCOUNT register. The
count is specified as the number of 4-MHz clock cycles. Refer to the Using the Timer
Module section for details.
Figure 75. ALED2CONVEND: LED2 Ambient Convert End Count Register
(Address = 10h, Reset Value = 0000h)
23
22
21
20
19
18
17
16
15
14
13
12
0
0
0
0
0
0
0
0
ALED2CONVEND[15:0]
11
10
9
8
7
6
5
4
3
2
1
0
ALED2CONVEND[15:0]
This register sets the end timing value for the ambient LED2 conversion.
Bits 23:16
Bits 15:0
Must be 0
ALED2CONVEND[15:0]: LED2 ambient convert end count
The contents of this register can be used to position the end of the LED2 ambient
conversion signal with respect to the PRP. The count is specified as the number of 4-MHz
clock cycles. Refer to the Using the Timer Module section for details.
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