ADuCM350

Data Sheet

Rev. A | Page 24 of 40

Pin No.

Mnemonic

I/O1

I/O Supply2

GPIO

Pull-Up/Down2

Description

Miscellaneous Digital Input/Output

K8

RESETX

I

VCCM_DIG

Pull-up

Reset Pin (Active Low).

L1

P4.0/I2CSCL

I/O

VCCM_DIG

Pull-up

dual function pin.

L2

P4.1/I2CSD

I/O

VCCM_DIG

Pull-up

R1

P4.2/TOUTB

I/O

VCCM_DIG

Pull-up

GPIO/Timer B Output. This is a dual function

pin.

R2

P0.10/TOUTC

I/O

VCCM_DIG

Pull-up

GPIO (External Interrupt 8)/Timer C Output.

This is a dual function pin.

K2

P0.11

I/O

VCCM_DIG

Pull-up

GPIO (External Clock Input Pin).

N2

BOOT

I

VCCM_DIG

Pull-down

The device enters serial download mode if

this pin is held high during, and for a short

time after, a reset. It executes user code after

any reset event or if the pin is low.

A1

DNC

N/A

N/A

Do Not Connect. Leave this pin floating.

Audio

K6

P3.12/BEEP/BMCLK

I/O

VCCM_DIG

Pull-down

This is a multifunction pin.

K7

P3.13/BEEPX/SDATA

I/O

VCCM_DIG

Pull-down

Output. This is a multifunction pin.

J6

P3.14/LRCLK

I/O

VCCM_DIG

Pull-down

1

S is supply, A is analog input, I is digital input, O is digital output, I/O is digital input/output, and G is ground.

2

N/A means not applicable.