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PRCM Registers
6.2.3.11 RECHARGESTAT Register (Offset = 34h) [reset = X]
RECHARGESTAT is shown in
and described in
Recharge Controller Status This register controls various status registers which are updated during
recharge. The register is mostly intended for test and debug.
recharge. The register is mostly intended for test and debug.
Figure 6-77. RECHARGESTAT Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RESERVED
VDDR_SMPLS
R-X
R-X
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
MAX_USED_PER
R/W-X
Table 6-81. RECHARGESTAT Register Field Descriptions
Bit
Field
Type
Reset
Description
31-20
RESERVED
R
X
Software should not rely on the value of a reserved. Writing any
other value than the reset value may result in undefined behavior.
other value than the reset value may result in undefined behavior.
19-16
VDDR_SMPLS
R
X
The last 4 VDDR samples, bit 0 being the newest. The register is
being updated in every recharge period with a shift left, and bit 0 is
updated with the last VDDR sample, ie a 1 is shiftet in in case VDDR
> VDDR_threshold just before recharge starts. Otherwise a 0 will be
shifted in.
being updated in every recharge period with a shift left, and bit 0 is
updated with the last VDDR sample, ie a 1 is shiftet in in case VDDR
> VDDR_threshold just before recharge starts. Otherwise a 0 will be
shifted in.
15-0
MAX_USED_PER
R/W
X
The maximum value of recharge period seen with VDDR>threshold.
The VDDR voltage is compared against the threshold voltage at just
before each recharge. If VDDR is above threshold,
MAX_USED_PER is updated with max ( current recharge peride;
MAX_USED_PER ) This way MAX_USED_PER can track the
recharge period where VDDR is decharged to the threshold value.
We can therefore use the value as an indication of the leakage
current during recharge. This bitfield is cleared to 0 when writing this
register.
The VDDR voltage is compared against the threshold voltage at just
before each recharge. If VDDR is above threshold,
MAX_USED_PER is updated with max ( current recharge peride;
MAX_USED_PER ) This way MAX_USED_PER can track the
recharge period where VDDR is decharged to the threshold value.
We can therefore use the value as an indication of the leakage
current during recharge. This bitfield is cleared to 0 when writing this
register.
505
SWCU117A – February 2015 – Revised March 2015
Power, Reset, and Clock Management
Copyright © 2015, Texas Instruments Incorporated