FUNC_SMPS Registers
22
SLVUAH1C – June 2015 – Revised April 2017
Copyright © 2015–2017, Texas Instruments Incorporated
Register Descriptions
3.3.1 SMPS1_CTRL Register (Address = 120h) [reset = 0h]
SMPS1_CTRL is shown in
and described in
Return to
SMPS1 (or SMPS12 in case of dual-phase) control register.
RESET register domain: HWRST (MODE_ACTIVE and MODE_SLEEP are in SWORST domain)
Notes: MODE_SLEEP is used when NSLEEP, ENABLE1, ENABLE2 signals select the resource.
MODE_ACTIVE is used when none of NSLEEP, ENABLE1, ENABLE2 signals select resource (see
Resources SLEEP/ACTIVE assignments table in the Data Manual for details).
Figure 3-15. SMPS1_CTRL Register
7
6
5
4
3
2
1
0
WR_S
ROOF_FLOOR
_EN
STATUS
MODE_SLEEP
MODE_ACTIVE
R/W-0h
R/W-0h
R-0h
R/W-0h
R/W-0h
Table 3-18. SMPS1_CTRL Register Field Descriptions
Bit
Field
Type
Reset
Description
7
WR_S
R/W
0h
Warm reset sensitivity
0: Re-load the default value (from OTP) in SMPS1_VOLTAGE.VSEL
and SMPS1_FORCE.VSEL register and re-load the default value
(reset value) in SMPS1_FORCE.CMD during Warm Reset.
1: Maintain current voltage during Warm Reset (Registers remain
unchanged - no voltage change).
6
ROOF_FLOOR_EN
R/W
0h
Roof Floor enable bit (only for DVS)
0: Voltage Selection controlled by SMPS1_FORCE.CMD bit.
1: Voltage Selection controlled by device resource pins (NSLEEP,
ENABLE1, ENABLE2).
5-4
STATUS
R
0h
SMPS1 (or SMPS12 in case of dual-phase) status
00: OFF
01: Forced PWM
10: ECO
11: Forced PWM
3-2
MODE_SLEEP
R/W
0h
SMPS1 (or SMPS12 in case of dual-phase) SLEEP Mode
00: OFF (default)
01: Forced PWM
10: ECO
11: Forced PWM
1-0
MODE_ACTIVE
R/W
0h
SMPS1 (or SMPS12 in case of dual-phase) ACTIVE Mode
00: OFF (default)
01: Forced PWM
10: ECO
11: Forced PWM