WM8311 datasheet(146/302 Pages) WOLFSON

146 / 302 page

WM8311

Pre-Production

PP, May 2012, Rev 3.1

146

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R16449

(4041h)

GPIO10

Control

GP10_PWR_D

GPIO10 Power Domain select

0 = DBVDD

1 = SYSVDD

R16450

(4042h)

GPIO11

Control

GP11_PWR_D

GPIO11 Power Domain select

0 = DBVDD

1 = SYSVDD

R16451

(4043h)

GPIO12

Control

GP12_PWR_D

GPIO12 Power Domain select

0 = DBVDD

1 = SYSVDD

Table 81 GPIO Power Domain Registers

The function of each GPIO is controlled using the GPn_FN registers defined in Table 82. Note that

the selected function also depends on the associated GPn_DIR field described in Table 79.

See also Section 21.2 for additional details of each GPIO function, including the applicable de-bounce

times for GPIO input functions.

The Touch Panel controller must be disabled if using GPIO13 to GPIO16 as GPIO functions. Note

that, when the Touch Panel controller is enabled, GPIO13 to GPIO16 must be tri-stated using the

GPn_ENA register bits (see Table 79).

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R16440

(4038h)

GPIO1 Control

3:0

GP1_FN [3:0]

0000

Input functions:

0h = GPIO input (long de-bounce)

1h = GPIO input

2h = Power On/Off request

3h = Sleep/Wake request

4h = Sleep/Wake request (long de-

bounce)

5h = Sleep request

6h = Power On request

7h = Watchdog Reset input

8h = DVS1 input

9h = DVS2 input

Ah = HW Enable1 input

Bh = HW Enable2 input

Ch = HW Control1 input

Dh = HW Control2 input

Eh = HW Control1 input (long de-

bounce)

Fh = HW Control2 input (long de-

bounce)

Output functions:

0h = GPIO output

1h = 32.768kHz oscillator output

2h = ON state

3h = SLEEP state

4h = Power State Change

5h = Reserved

6h = Touch Panel Pen Down

7h = Touch Panel Conversion

complete

R16441

(4039h)

GPIO2 Control

3:0

GP2_FN [3:0]

0000

R16442

(403Ah)

GPIO3 Control

3:0

GP3_FN [3:0]

0000

R16443

(403Bh)

GPIO4 Control

3:0

GP4_FN [3:0]

0000

R16444

(403Ch)

GPIO5 Control

3:0

GP5_FN [3:0]

0000

R16445

(403Dh)

GPIO6 Control

3:0

GP6_FN [3:0]

0000

R16446

(403Eh)

GPIO7 Control

3:0

GP7_FN [3:0]

0000

R16447

(403Fh)

GPIO8 Control

3:0

GP8_FN [3:0]

0000

R16448

(4040h)

GPIO9 Control

3:0

GP9_FN [3:0]

0000

R16449

(4041h)

GPIO10

Control

3:0

GP10_FN [3:0]

0000

R16450

3:0

GP11_FN [3:0]

0000

WM8311 Datasheet(PDF) 146 Page - Wolfson Microelectronics plc

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