Datasheet
Data Sheet ADP5050
Rev. 0 | Page 45 of 60
REGISTER 6: OPT_CFG (FPWM/PSM MODE AND
OUTPUT DISCHARGE FUNCTION CONFIGURATION),
ADDRESS 0x06
Register 6 is used to configure the operational mode and the
discharge switch setting for Channel 1 to Channel 4. The
PSMx_ON bit setting for each channel is in effect when the
SYNC/MODE pin is high (or when SYNC/MODE is configured
as a clock input or output). When the SYNC/MODE pin is low,
all channels are forced to work in automatic PWM/PSM mode,
and the PSMx_ON settings in this register are ignored. The default
value for the output discharge function can be programmed by
factory fuse (output discharge function enabled or disabled for
all four buck regulators).
Table 29. Register 6 Bit Assignments
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DSCG4_ON DSCG3_ON DSCG2_ON DSCG1_ON PSM4_ON PSM3_ON PSM2_ON PSM1_ON
Table 30. OPT_CFG Register, Bit Function Descriptions
Bits Bit Name Access Description
7 DSCG4_ON R/W The default value is programmed by factory fuse.
0 = disable output discharge function for Channel 4.
1 = enable output discharge function for Channel 4.
6 DSCG3_ON R/W The default value is programmed by factory fuse.
0 = disable output discharge function for Channel 3.
1 = enable output discharge function for Channel 3.
5 DSCG2_ON R/W The default value is programmed by factory fuse.
0 = disable output discharge function for Channel 2.
1 = enable output discharge function for Channel 2.
4 DSCG1_ON R/W The default value is programmed by factory fuse.
0 = disable output discharge function for Channel 1.
1 = enable output discharge function for Channel 1.
3 PSM4_ON R/W This bit is ignored when the SYNC/MODE pin is low.
0 = enable forced PWM mode for Channel 4 (default).
1 = enable automatic PWM/PSM mode for Channel 4.
2 PSM3_ON R/W This bit is ignored when the SYNC/MODE pin is low.
0 = enable forced PWM mode for Channel 3 (default).
1 = enable automatic PWM/PSM mode for Channel 3.
1 PSM2_ON R/W This bit is ignored when the SYNC/MODE pin is low.
0 = enable forced PWM mode for Channel 2 (default).
1 = enable automatic PWM/PSM mode for Channel 2.
0 PSM1_ON R/W This bit is ignored when the SYNC/MODE pin is low.
0 = enable forced PWM mode for Channel 1 (default).
1 = enable automatic PWM/PSM mode for Channel 1.