WM8321
Production Data
DESCRIPTION
ADDRESS
BIT
LABEL
DEFAULT
DC1_ON_VS
EL [1:0]
DC1_ON_VSEL[6:0] selects the DC-
DC1 output voltage from 0.6V to 1.8V
in 12.5mV steps.
1:0
00
DC1_ON_VSEL[6:2] also exist in
ICE/OTP memory, controlling the
voltage in 50mV steps.
DC1_ON_VSEL[6:0] is coded as
follows:
00h to 08h = 0.6V
09h = 0.6125V
…
48h = 1.4V (see note)
…
67h = 1.7875V
68h to 7Fh = 1.8V
Note - Maximum output voltage
selection in 4MHz switching mode is
48h (1.4V).
R16473 (4059h)
DC1_SLP_S
LOT [2:0]
DC-DC1 SLEEP Slot select
15:13
000
DC1 SLEEP
Control
000 = SLEEP voltage / operating
mode transition in Timeslot 5
001 = Disable in Timeslot 5
010 = Disable in Timeslot 4
011 = Disable in Timeslot 3
100 = Disable in Timeslot 2
101 = Disable in Timeslot 1
110 = SLEEP voltage / operating
mode transition in Timeslot 3
111 = SLEEP voltage / operating
mode transition in Timeslot 1
If DC-DC1 is assigned to a Hardware
Enable Input, then codes 001-101
select in which timeslot the converter
enters its SLEEP condition.
DC1_SLP_M
ODE [1:0]
DC-DC1 SLEEP Operating Mode
9:8
00
00 = Forced Continuous Conduction
Mode
01 = Auto Mode (Continuous /
Discontinuous Conduction with Pulse-
Skipping)
10 = LDO Mode
11 = Hysteretic Mode
DC-DC1 SLEEP Voltage select
0.6V to 1.8V in 12.5mV steps
00h to 08h = 0.6V
09h = 0.6125V
DC1_SLP_V
SEL [6:0]
6:0
000_0000
…
48h = 1.4V (see note)
…
67h = 1.7875V
68h to 7Fh = 1.8V
Note - Maximum output voltage
selection in 4MHz switching mode is
48h (1.4V).
PD, February 2012, Rev 4.0
72
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
