EMC EM78612 Instrukcja Użytkownika Pobierz pdf (Strona 6)

EM78612

Universal Serial Bus Microcontroller Series

6 3/5/2003 (V1.0) This specification may change without further notice.

It has two interrupt vectors, i.e., Interrupt Vectors at 0x0001 and USB Application Interrupt

Vectors at 0x000A. The Interrupt Vector applies to TCC Interrupt, and Port 5 State Changed

Interrupt. The USB Application Interrupt Vector is for USB EndPoint Zero Interrupt, USB

Suspend Interrupt, USB Reset interrupt ,and USB Host Resume Interrupt.

After an interrupt, the MCU will fetch the next instruction from the corresponding address as

illustrated in the following diagram.

After reset Address

0x0000

Reset Vector

0x0001

Interrupt Vector

0x000A

USB Application Interrupt Vector

0x03FF

Page 0

0x0400

0x07FF

Page 1

8.2 Data Memory

The Data Memory has 80 bytes SRAM space. It is also equipped with USB Application FIFO

space for USB Application. The Figure 8.1 (next page) shows the organization of the Data

Memory Space.

1 2 3 4 5 6 7 8 9 10 11 ... 28 29

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EMC EM78612 Instrukcja Użytkownika Strona 6