wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 184

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

WM8400
w
R61 (3Dh)
FLL Control 2
R62 (3Eh)
FLL Control 3
R63 (3Fh)
FLL Control 4
R65 (41h)
LDO1 Control
REGISTER
ADDRESS
7:5
4:0
15:0
15:10
9:0
15:7
6:3
2:0
15
14
13:12
11
10
BIT
FLL_CTRL_RATE
[2:0]
FLL_FRATIO
[4:0]
FLL_K[15:0]
FLL_N[9:0]
FLL_TRK_GAIN
[3:0]
FLL_OUTDIV
[2:0]
LDO1_ENA
LDO1_SWI
LDO1_ERRACT
LDO1_HIB_MODE
LABEL
0h
8
0h
00h
0h
000h
0h
3h
0b
0b
00b
0b
0b
DEFAULT
Frequency of the FLL control block
000 = F
001 = F
010 = F
011 = F
100 = F
101 = F
Recommended that these are not changed from default.
CLK_VCO is divided by this integer, valid from 1 .. 31.
1 recommended for high freq reference
8 recommended for low freq reference
Fractional multiply for CLK_REF
Reserved - Do Not Change
Integer multiply for CLK_REF
Reserved - Do Not Change
Gain applied to error
0000 = x 1 (Recommended value)
0001 = x 2
0010 = x 4
0011 = x 8
0100 = x 16
0101 = x 32
0110 = x 64
0111 = x 128
1000 = x 256
Recommended that these are not changed from default.
F
000 = F
001 = F
010 = F
011 = F
100 = F
101 = Reserved
110 = Reserved
111 = Reserved
LDO1 Software enable
0 = Disabled
1 = Enabled
LDO1 function select
0 = LDO Regulator
1 = Current Limited switch
Reserved - Do Not Change
LDO1 Undervoltage Error Action
0 = Generate IRQ only
1 = Generate IRQ, Assert NRST, De-assert PWRGOOD,
Shutdown device
LDO1 Hibernate Mode
0 = LDO1 disabled in Hibernate
1 = LDO1 enabled in Hibernate
OUT
clock divider
VCO
VCO
VCO
VCO
VCO
VCO
VCO
VCO
VCO
VCO
VCO
/ 2
/ 4
/ 8 (best performance)
/ 16
/ 32
/ 1 (Recommended value)
/ 2
/ 4
/ 8
/ 16
/ 32
DESCRIPTION
PP, April 2009, Rev 3.0
Pre-Production
184