P80C562 查看數據表（PDF） - Philips Electronics

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产品描述 (功能)

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P80C562

8-bit microcontroller

Philips Electronics 

Philips Semiconductors

8-bit microcontroller

Product specification

P83C562; P80C562

12.2.1 T2 CONTROL REGISTER (TM2CON)

Table 12 T2 Control Register (SFR address EAH)

7

T2IS1

6

T2IS0

5

T2ER

4

T2B0

3

T2P1

2

T2P0

Table 13 Description of TM2CON bits

BIT

SYMBOL

DESCRIPTION

7

T2IS1

Timer 2 16-bit overflow interrupt select.

6

T2IS0

Timer 2 byte overflow interrupt select.

5

T2ER

Timer 2 external reset enable.

4

T2B0

Timer 2 byte overflow interrupt flag.

3

T2P1

Timer 2 prescaler select (see Table 14).

2

T2P0

1

T2MS1

Timer 2 mode select (see Table 15).

0

T2MS0

Table 14 Timer 2 prescaler select

T2P1

0

0

1

1

T2P0

0

1

0

1

Clock source

1⁄2 clock source

1⁄4 clock source

1⁄8 clock source

T2 CLOCK

Table 15 Timer 2 mode select

T2MS1

0

0

1

1

T2MS0

0

1

0

1

Timer T2 is halted

T2 clock source = 1⁄12 × fOSC

Test mode; do not use

T2 clock source = pin T2

MODE

1

T2MS1

0

T2MS0

1997 Apr 08

20

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