Product Specs

P21
PIO-4
Digital：Bidirectional
with programmable
strength internal pullup/
pull-down
Weak
pull-down
Programmable I/O line
4.
Alternative function：
■TBR_MOSI[1]
P22
PIO-3
Digital：Bidirectional
with programmable
strength internal pullup/
pull-down
Weak
pull-down
Programmable I/O line
3.
Alternative function：
■TBR_MISO[2]
P23
MFB
[SYS_CTRL]
Digital
input
-
Typically connected to an ON/OFF
push button.Boots device in
response to a button press when
power is still present from
battery
and/or charger but software has
placed the device in the OFF or
DORMANT state.Additionally
useable as a digital input in
normal
operation.No pull.
Additional function：
■PIO[0]input only
P24
1V8_SMPS
-
-
1.8 V OUT
P25
LED0
[AIO_0]
Analog or digital input/
open drain output.
-
General-purpose analog/digital
input or open drain LED output.
P26
LED1
[AIO_1]
Analog or digital input/
open drain output.
-
General-purpose analog/digital
input or open drain LED output.
P27
LED2
[AIO_2]
Analog or digital input/
open drain output.
-
General-purpose analog/digital
input or open drain LED output.
P28
MIC A N
Analog
-
Microphone differential 1input,
negative.
Alternative function：
■Differential audio line input
left,
negative
P29
MIC A P
Analog
-
Microphone differential 1input,
positive.
Alternative function：
■Differential audio line input
left,
positive
P30
MIC_BIAS
Analog
-
Mic bias output.
P31
MIC B N
Analog
-
Microphone differential 2input,
negative.
Alternative function：
■Differential audio line input
right,
negative
P32
MIC B P
Analog
-
Microphone differential 2input,
positive.
Alternative function：
■Differential audio line input
right,
positive
P33
SPKR_RN
Analog
-
Headphone/speaker differential
right output,negative.
Alternative function：
■Differential right line output,
negative