TMP86FM29

2004-03-01

86FM29-5

Pin Functions

Pin Name

Input/Output

Functions

I/O (I/O)

Serial clock input/output

P16 (SEG25, TxD, SO)

I/O (Output)

UART data output

Serial data output

P15 (SEG26, RxD, SI

BOOT)

I/O (I/O)

UART data input

Serial data input

Serial PROM mode control

input

P14 (SEG27, INT3)

I/O (I/O)

External interrupt 3 input

P13 (SEG28, INT2)

I/O (I/O)

External interrupt 2 input

P12 (SEG29, INT1)

I/O (I/O)

External interrupt 1 input

P11 (SEG30)

I/O (Output)

P10 (SEG31)

I/O (Output)

8-bit input/output port with latch.

When used as input port, an external

interrupt input, serial interface

input/output and UART data

input/output, the P1LCR must be set to

“0” after setting output latch to “1”.

When used as a LCD segment output,

the P1LCR must be set to “1”.

LCD segment

outputs.

P22 (XTOUT)

I/O (Output)

P21 (XTIN)

I/O (Input)

Resonator connecting pins (32.768 kHz)

For inputting external clock, XTIN is used and

XOUT is opened.

I/O (Input)

3-bit input/output port with latch. When

used as an input port, the output latch

must be set to “1”.

External interrupt input 5 or STOP mode

release signal input

PPG6

, TC6)

I/O (I/O)

Timer counter 6 input/output

PPG4

, TC4)

I/O (I/O)

Timer counter 4 input/output

TC3)

I/O (I/O)

Timer counter 3 input/output

I/O (Output)

4-bit programmable input/output port

(Nch high current output).

When used as a timer/counter output or

divider output, the output latch must be

set to “1”. When used as an input port

or timer/counter input, the P3OUTCR

must be set to “0” after P3DR is set to

“1”.

Divider output

P57 (SEG16) to

P50 (SEG23)

I/O (Output)

8-bit input/output port with latch.

When used as a LCD segment output,

the P5LCR must be set to “1”.

LCD segment outputs

P67 (AIN7, STOP5)

I/O (Input)

STOP 5 input

P66 (AIN6, STOP4)

I/O (Input)

STOP 4 input

P65 (AIN5, STOP3)

I/O (Input)

STOP 3 input

P64 (AIN4, STOP2)

I/O (Input)

STOP 2 input

I/O (Input)

External interrupt 0 input

P62 (AIN2, ECNT)

I/O (Input)

P61 (AIN1, ECIN)

I/O (Input)

Timer/Counter 1 input

P60 (AIN0)

I/O (Input)

8-bit programmable input/output port

(tri-state). Each bit of this port can be

individually configured as an input or an

output under software control. When

used as an analog input, the P6CR

must be set to “0” after setting output

latch to “0”. When used as an input

port, a key on wake up input, an

external interrupt input and timer/

counter input, the P6CR must be set to

“0” after setting output latch to “1”.

AD converter

analog inputs

P77 (SEG8) to

P70 (SEG15)

I/O (Output)

8-bit input/output port with latch.

When used as a LCD segment output,

the P7LCR must be set to “1”.

LCD segment outputs

SEG7 to SEG0

LCD segment outputs

COM3 to COM0

Output

LCD common outputs

V3 to V1

C1 to C0

LCD voltage

booster pin

LCD voltage booster pin.

Capacitors are required between C0 and C1 pin and V1/V2/V3 pin and GND.

XIN, XOUT

Input Output

Resonator connecting pins for high-frequency clock.

For inputting external clock, XIN is used and XOUT is opened.

RESET

I/O

Reset signal input or watchdog timer output/address-trap-reset output/system clock

reset output

TEST

Input

Test pin for out-going test, and the serial PROM mode control pin. Usually be fixed to

low level. When the serial PROM mode starts, be fixed to "1".

VDD, VSS

+5 V, 0 (GND)

VAREF

Analog reference voltage inputs (High)

AVDD

Power Supply

AD circuit power supply