W681308
XXXX PRODUCT DESCRIPTION
Driver
Pin
No
State in
Reset
Pin Name
Functionality
JTAG Data Output / GPIO 2
Pin Type
Strength
TDO/GPIO 2
VPP
23
24
Pull-L
D
A
I/O
2 mA
Reset signal for digital core. Tie this pin to 6.75V for
programming the OTP ROM
P
—
AGND
SPN
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
Analog ground supply voltage
A
A
A
A
A
A
A
A
A
A
A
A
A
D
D
D
D
D
D
D
D
D
D
P
O
—
—
Speaker1 negative connection
Speaker2 negative connection
Analog supply voltage
EARN
O
—
AVDD
P
—
EARP
Speaker2 positive connection
O
—
SPP
Speaker1 positive connection
O
—
AGND
Analog ground supply voltage
P
—
RGND
Low noise ADC and DAC reference
The microphone amplifier output
Microphone positive connection
Voltage reference
P
—
MCO
G
—
MCP
O
—
VREF2
O
—
VREF1
Voltage reference
O
—
REGL
Linear regulator base control output
Keypad row Y4 connection /GPIO 24
Keypad row Y3 connection /GPIO 23
Keypad row Y2 connection /GPIO 22
Keypad row Y1 connection /GPIO 21
Keypad row Y0 connection /GPIO 20
Keypad column X4 connection /GPIO 19
Keypad column X3 connection /GPIO 18
Keypad column X2 connection /GPIO 17
Keypad column X1 connection /GPIO 16
Keypad column X0 connection /GPIO 15
O
—
KY4/GPIO 24
KY3/GPIO 23
KY2/GPIO 22
KY1/GPIO 21
KY0/GPIO 20
KX4/GPIO 19
KX3/GPIO 18
KX2/GPIO 17
KX1/GPIO 16
KX0/GPIO 15
Pull-H
Pull-H
Pull-H
Pull-H
Pull-H
Pull-L
Pull-L
Pull-L
Pull-L
Pull-L
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
2 mA
Tie to DGND for normal operation. Tie to DVDD to
enable JTAG function.
JTAG
48
Pull-L
D
I
2 mA
Table 1 Pin Description
NOTE: All GPIO pins modes are controlled by register settings.
10
Rev1.2
NUVOTEM TALEMA [ NUVOTEM TALEMA ]
