ST10 datasheet(6/58 Pages) STMICROELECTRONICS

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ST10F163

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Table 1 : Pin definitions and functions

Symbol

Number(

TQFP )

Input (I)

Output

(O)

Function

P5.10 – P5.15

98-100

1- 3

6-bit input-only port with Schmitt-Trigger characteristics.

Port 5 pins also serve as timer inputs:

P5.10

T6EUD

GPT2 Timer T6 Ext.Up/Down Ctrl.Input

P5.11

T5EUD

GPT2 Timer T5 Ext.Up/Down Ctrl.Input

100

P5.12

T6IN

GPT2 Timer T6 Count Input

P5.13

T5IN

GPT2 Timer T5 Count Input

P5.14

T4EUD

GPT1 Timer T4 Ext.Up/Down Ctrl.Input

P5.15

T2EUD

GPT1 Timer T2 Ext.Up/Down Ctrl.Input

XTAL1

XTAL1: Input to the oscillator amplifier and input to the internal clock generator

XTAL2

XTAL2: Output of the oscillator amplifier circuit.

To clock the device from an external source, drive XTAL1, while leaving XTAL2

unconnected. Minimum and maximum high/low and rise/fall times specified in

the AC Characteristics must be observed.

P3.0 – P3.13,

P3.15

8- 21

I/O

15-bit (P3.14 is missing) bidirectional I/O port, bit-wise programmable for input

or output via direction bits. For a pin configured as input, the output driver is put

into high-impedance state. Port 3 outputs can be configured as push/pull or

open drain drivers. The following Port 3 pins have alternate functions:

P3.1

T6OUT

GPT2 Timer T6 Toggle Latch Output

P3.2

CAPIN

GPT2 Register CAPREL Capture Input

P3.3

T3OUT

GPT1 Timer T3 Toggle Latch Output

P3.4

T3EUD

GPT1 Timer T3 Ext.Up/Down Ctrl.Input

P3.5

T4IN

GPT1 Timer T4 Input for Count/Gate/Reload/Capture

P3.6

T3IN

GPT1 Timer T3 Count/Gate Input

P3.7

T2IN

GPT1 Timer T2 Input for Count/Gate/Reload/Capture

P3.10

TxD0

ASC0 Clock/Data Output (Asyn./Syn.)

I/O

P3.11

RxD0

ASC0 Data Input (Asyn.) or I/O (Syn.)

P3.12

BHE

Ext. Memory High Byte Enable Signal,

WRH

Ext. Memory High Byte Write Strobe

P3.15

CLKOUT

System Clock Output (=CPU Clock)

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