Pin Connections
Table 3. MC34708 Pin Definitions (continued)
Pin Number Pin Name
Pin
Function
Definition
K13
GNDREG1
GND Ground for regulators 1
L12
GNDREG2
GND Ground for regulators 2
A13
GPIOVDD
I
Supply for GPIOLV pins
E11
GPIOLV0
I/O
General purpose input/output 0
B11
GPIOLV1
I/O
General purpose input/output 1
D11
GPIOLV2
I/O
General purpose input/output 2
C11
GPIOLV3
I/O
General purpose input/output 3
A12
PWM1
O
PWM output 1
C10
PWM2
O
PWM output 2
B12
GNDGPIO
-
GPIO ground
Control Logic
A11
LICELL
1. Coin cell supply input
I/O
2. Coin cell charger output
M15
XTAL1
I
32.768 kHz Oscillator crystal connection 1
L15
XTAL2
I
32.768 kHz Oscillator crystal connection 2
K14
GNDRTC
GND Ground for the RTC block
H11
CLK32KVCC
I
Supply voltage for 32 k buffer
H13
CLK32K
O
32 kHz Clock output for peripherals
H10
CLK32KMCU
O
32 kHz Clock output for processor
E1
RESETB
O
Reset output for peripherals
F5
RESETBMCU
O
Reset output for processor
L4
WDI
I
Watchdog input
J5
STANDBY
I
Standby input signal from processor
E4
INT
O
Interrupt to processor
G8
PWRON1
I
Power on/off button connection 1
E3
PWRON2
I
Power on/off button connection 2
G7
GLBRST
I
Global Reset
C12
PUMS1
I
Power up mode supply setting 1
B14
PUMS2
I
Power up mode supply setting 2
B13
PUMS3
I
Power up mode supply setting 3
A14
PUMS4
I
Power up mode supply setting 4
D12
PUMS5
I
Power up mode supply setting 5
D10
ICTEST
I
Connect to ground for normal mode operation.
E2
GNDCTRL
GND Ground for control logic
F4
SPIVCC
I
Supply for SPI bus
G2
CS
I
Primary SPI select input
G1
CLK
I
Primary SPI clock input
F3
MOSI
I
Primary SPI write input
MC34708
11
Analog Integrated Circuit Device Data
Freescale Semiconductor