WM8352 datasheet(116/336 Pages) WOLFSON

116 / 336 page

WM8352

Production Data

PD, February 2011, Rev 4.4

116

Select /RST duration

R3 (03h)

RSTB_TO

Unlock protected registers

R219 (DBh)

0013h

Alternate function and input/output selection for GPIO pins

R140 (8Ch)

GP3_FN

GP2_FN

GP1_FN

GP0_FN

R141 (8Dh)

GP7_FN

GP6_FN

GP5_FN

GP4_FN

R142 (8Eh)

GP11_FN

GP10_FN

GP9_FN

GP8_FN

R143 (8Fh)

GP12_FN

R128 (80h)

GPn_DB (n = 0 to 12)

R129 (81h)

GPn_PU (n = 0 to 12)

R130 (82h)

GPn_PD (n = 0 to 12)

R134 (86h)

GPn_DIR (n = 0 to 12)

R135 (87h)

GPn_CFG (n = 0 to 12)

Disable battery charger (only if battery type is not compatible with WM8352 charger)

R168 (A8h)

Re-lock protected registers

R219 (DBh)

FFFFh

Configure supply generation

R180 (B4h)

DC1_VSEL[6:0]

R181(B5h)

DC1_ENSLOT[3:0]

R183 (B7h)

DC2_ENSLOT[3:0]

R186 (BAh)

DC3_VSEL[6:0]

R187 (BBh)

DC3_ENSLOT 3:0]

R189 (BDh)

DC4_VSEL[6:0]

R190 (BEh)

DC4_ENSLOT[3:0]

R193 (C1h)

DC5_ENSLOT[3:0]

R195 (C3h)

DC6_VSEL[6:0]

R196 (C4h)

DC6_ENSLOT[3:0]

R199 (C7h)

LS_ENSLOT[3:0]

R200 (C8h)

LDO1_VSEL[4:0]

R201 (C9h)

LDO1_ENSLOT[3:0]

R203 (CAh)

LDO2_VSEL[4:0]

R204 (CBh)

LDO2_ENSLOT[3:0]

R206 (CEh)

LDO3_VSEL[4:0]

R207 (CFh)

LDO3_ENSLOT[3:0]

R209 (D1h)

LDO4_VSEL[4:0]

R210 (D2h)

LDO4_ENSLOT[3:0]

Proceed to startup and hand over to host processor

R6 (06h)

DEV_ADD

Table 64 Suggested Sequence of Register Writes for WM8352 Configuration in Development Mode

Note that configuration only includes registers that are required for starting up correctly. All other

Most of these control fields are described here within Section 14. See Section 11.6 for details of

details of the Battery Charger configuration.

When using the /RST signal to trigger configuration, writing to the _ENSLOT and RSTB_TO fields

can be omitted (the reset and power-up sequence has already taken place, so the write would have

no effect). However, additional writes to R13 or R176 should be added to enable the DC-DC

converters and LDO regulators one by one.

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