Manual

37
AT86RF230
5131A-ZIGB-06/14/06
Bit Field Name Reset R/W Comments
3 DVREG_EXT 0 R/W 1’d0: use internal digital voltage regulator
1’d1: use external voltage regulator
2 DVDD_OK 0 R 1’d0: digital voltage regulator is disabled
1’d1: internal digital voltage is correct and stable
1:0 DVREG_TRIM 0 R/W Controls the voltage of the digital voltage regulator.
2’d0: 1.80V
2’d1: 1.75V
2’d2: 1.84V
2’d3: 1.88V
Table 8-12. 0x10 - VREG_CTRL
Bit Field Name Reset R/W Comments
7:6 0 R Reserved
5 BATMON_OK 0 R Result of battery monitor:
1’d0: not valid (VDD < BATMON_VTH)
1’d1: valid (VDD > BATMON_VTH)
4 BATMON_HR 0 R/W High range switch (mapping see BATMON_VTH)
Threshold voltage:
BATMON_VTH Mapping
Value Voltage [V]
BATMON_HR = ”1”
Voltage [V]
BATMON_HR = ”0”
0 2.550 1.70
1 2.625 1.75
2 2.700 1.80
3 2.775 1.85
4 2.850 1.90
5 2.925 1.95
6 3.000 2.00
7 3.075 2.05
8 3.150 2.10
9 3.225 2.15
10 3.300 2.20
11 3.375 2.25
12 3.450 2.30
13 3.525 2.35
14 3.600 2.40
3:0 BATMON_VTH 2 R/W
15 3.675 2.45
Table 8-13. 0x11 - BATMON