7.6.28 R83 Register (Address = 0x53) [reset = 0x2000]
R83 is shown in Figure 79 and described in Table 36.
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Figure 79. R83 Register
15 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
IFA_PULLUP |
VCM_CONFIG |
RESERVED |
R/W-0x1 |
R/W-0x0 |
R-0x0 |
|
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
RESERVED |
R-0x0 |
|
Table 36. R83 Register Field Descriptions
Bit |
Field |
Type |
Reset |
Description |
15-13 |
IFA_PULLUP |
R/W |
0x1 |
IFA virtual node pull up resistor to set the biasing of the IFA input stage correct when the output common mode is <1.4V. Should be used in conjunction with the corresponding EN bit in first register.
0x2 = Invalid
0x4 = Invalid
0x5 = Invalid
0x6 = Invalid
|
12-9 |
VCM_CONFIG |
R/W |
0x0 |
Output Common mode (VOCM) configuration for IFA. Only one bit to be set as high at a time. Only valid states are 0,3,5,9.
0x0 = 1.7
0x3 = 2V
0x5 = External
0x9 = 1.4V
|
8-0 |
RESERVED |
R |
0x0 |
|