SM59D03G2 Datasheet, PDF(57/67 Page) SyncMOS Technologies,Inc

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SM59D03G2 Datasheet, PDF (57/67 Pages) SyncMOS Technologies,Inc – 8-Bits Micro-controller

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13 Interrupts

SM59D03G2

8-Bits Micro-controller

8KB+ ISP Flash & 1KB RAM embedded

SM59D03G2 has a total of 8 interrupt vectors, they include two external interrupts, three timer

interrupts, one serial port interrupts, EEI interrupts, and a PCA interrupt.

Each of the interrupt sources can be individually enabled or disabled by setting or clearing a bit in

the IE or IE1 register. This register also contains a global disable bit, which must be cleared to

disable all interrupt at once.

Interrupt Source

External interrupt 0

Timer 0

External interrupt 1

Timer 1

Serial Port

Timer 2

EEI

PCA interrupt

Interrupt Vector

0003h

000Bh

0013h

001Bh

0023h

002Bh

0033h

003Bh

Polling

sequence

13.1 SFR description

Mnemonic Description

Direct Bit 7

Interrupt Enable

A8h

IE1

Interrupt Enable

1 register

A9h

Interrupt Priority

B8h

IP1

Interrupt Priority

1 register

B9h

Bit 6 Bit 5

EEI interface

ET2

Bit 4

PT2

Bit 3

ET1

PT1

Bit 2 Bit 1 Bit 0 RESET

EX1 ET0 EX0 00h

EPCA KBD 00h

PX1 PT0 PX0 00h

PPCA PKBD 00h

Mnemonic: IE

Address: A8h

0 Reset

ET2

ET1

EX1 ET0 EX0 00h

EA: Disable all interrupt. If EA = 0, no interrupt will be acknowledged. If EA = 1, each

interrupt source is individually enabled or disabled by setting or clearing its enable bit.

ET2: Timer 2 interrupt enable bit.

ES: Serial port 0 interrupt enable bit.

ET1: Timer 1 interrupt enable bit.

EX1: External interrupt 1 enable bit.

ET0: Timer 0 interrupt enable bit.

EX0: External interrupt 0 enable bit.

Specifications subject to change without notice contact your sales representatives for the most recent information.

ISSFD-M030

Ver.C SM59D03G2 07/2009

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