WM8310 datasheet(66/291 Pages) CIRRUS

66 / 291 page

WM8310

Pre-Production

PP, May 2012, Rev 3.1

FUNCTION

REFERENCE

GP5_DIR

GPIO5

See Section 21.3

GP5_PULL [1:0]

See Section 21.3

GP5_INT_MODE

See Section 21.3

GP5_PWR_DOM

See Section 21.3

GP5_POL

See Section 21.3

GP5_OD

See Section 21.3

GP5_ENA

See Section 21.3

GP5_FN [3:0]

See Section 21.3

GP6_DIR

GPIO6

See Section 21.3

GP6_PULL [1:0]

See Section 21.3

GP6_INT_MODE

See Section 21.3

GP6_PWR_DOM

See Section 21.3

GP6_POL

See Section 21.3

GP6_OD

See Section 21.3

GP6_ENA

See Section 21.3

GP6_FN [3:0]

See Section 21.3

CLKOUT_SLOT [2:0]

Clocking

See Section 13.1

CLKOUT_SRC

See Section 13.1

XTAL_ENA

See Section 13.1

XTAL_INH

See Section 13.1

FLL_AUTO_FREQ [2:0]

See Section 13.3

USB_ILIM [2:0]

USB Configuration

See Section 17.4

USB100MA_STARTUP [1:0]

See Section 17.4

CHG_ENA

Battery Charger Enable

See Section 17.7

WDOG_ENA

Watchdog Timer

See Section 25

LED1_SRC [1:0]

System Status LED Drivers

See Section 22.2

LED2_SRC [1:0]

See Section 22.2

SYSOK_THR [2:0]

Supply Voltage Monitoring

See Section 24.4

Table 31 DCRW Page 3

14.6.5

DCRW PAGE 4

Page 4 of the DCRW occupies register addresses R30752 (7820h) to R30759 (7827h).

This page of data is loaded from the third page of ICE memory (20h to 2Fh) when ‘ON’ state transition

is scheduled in Development Mode. This page of data can also be loaded from ICE using the ICE

Read command. Note that ICE Address 20h corresponds to bits 15:8 at the start address of DCRW

Page 4; ICE Address 21h corresponds to bits 7:0 at the same DCRW address.

The ICE_VALID_DATA register is used to hold a validation field for the ICE data contents. If the

WM8310 configuration data is loaded from the external ICE in response to an ‘ON’ state transition

request in Development Mode, then the ICE_VALID_DATA field is checked to confirm valid ICE data.

The ICE data is deemed valid if the ICE_VALID_DATA field contains the value A596h. If the ICE is

not connected or contains invalid data, then the WM8310 remains in the OFF power state until a

Device Reset.

The ICE_VALID_DATA register is defined in Table 32.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R30759 (7827h)

ICE CHECK

DATA

15:0

ICE_VALID_

DATA [15:0]

0000h

This field is checked in development

mode when an ‘ON’ transition is

requested. A value of A596h is required

to confirm valid data.

Table 32 ICE Registers - DCRW Page 4

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