WM9713 datasheet(78/111 Pages) WOLFSON

78 / 111 page

WM9713L

Preliminary Technical Data

PTD, March 2004, Rev 2.2

Figure 27 GPIO Logic

GPIO

BIT

SLOT

12 BIT

TYPE

PIN NO.

DESCRIPTION

GPIO Pin

GPIO1

GPIO Pin

GPIO2 / IRQ

enabled only when pin not used as IRQ

GPIO Pin

GPIO3 / PENDOWN

enabled only when pin not used as PENDOWN

GPIO Pin

GPIO4 / ADA / MASK

enabled only when pin not used as ADA

GPIO Pin

GPIO5 / SPDIF_OUT

enabled only when pin not used as SPDIF_OUT

GPIO Pin

GPIO6 / ADA / MASK

Enabled only when pin not used as ADA

GPIO Pin

GPIO7 / PENDOWN

enabled only when pin not used as PENDOWN

GPIO Pin

GPIO8 / SPDIF_OUT

enabled only when pin not used as SPDIF_OUT

Virtual GPIO

[MICDET]

Internal microphone bias current detect, generates an interrupt above

a threshold (see MICBIAS Current Detect)

Virtual GPIO

[MICSHT]

Internal shorted microphone detect, generates an interrupt above a

threshold (see MICBIAS Current Detect)

Virtual GPIO

[Thermal Cutout]

Internal thermal cutout signal, indicates when internal temperature

reaches approximately 150

°C (see “Thermal Sensor”)

virtual GPIO

[ADA]

Internal ADA (ADC Data Available) Signal

enabled only when touchpanel ADC is active

Virtual GPIO

[PEN DOWN]

Internal PENDOWN Signal

enabled only when pen-down detection is active

Virtual GPIO

[COMP2]

Internal COMP2 output (Low Battery Alarm)

enabled only when COMP2 is on

Virtual GPIO

[COMP1]

Internal COMP1 output (Dead Battery Alarm)

enabled only when COMP1 is on

Table 60 GPIO Bits and Pins

WM9713 Datasheet(PDF) 78 Page - Wolfson Microelectronics plc

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