W78L812A(2006) Просмотр технического описания (PDF) - Winbond

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Компоненты Описание

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W78L812A
(Rev.:2006)

8-BIT MICROCONTROLLER

Winbond 

W78LE812/W78L812A

8-BIT MICROCONTROLLER

Table of Contents-

1. GENERAL DESCRIPTION ......................................................................................................... 3

2. FEATURES ................................................................................................................................. 3

3. PIN CONFIGURATIONS ............................................................................................................ 4

4. PIN DESCRIPTION..................................................................................................................... 6

5. FUNCTIONAL DESCRIPTION ................................................................................................... 7

5.1 Timers 0, 1, and 2 ........................................................................................................... 7

5.2 Timer 2 Mode Control ..................................................................................................... 7

5.3 I/O Port Options .............................................................................................................. 8

5.3.1 Port Options Register ....................................................................................................8

5.4 Port 4 .............................................................................................................................. 8

5.4.1 Port 4.............................................................................................................................8

5.5 Interrupt System ............................................................................................................. 9

5.5.1 Interrupt Enable Register 0............................................................................................9

5.5.2 Interrupt Enable Register 1............................................................................................9

5.5.3 Interrupt Priority Register 0..........................................................................................10

5.5.4 Interrupt Priority Register 1..........................................................................................10

5.5.5 Interrupt Polarity Register ............................................................................................10

5.5.6 Interrupt Request Flag Register...................................................................................11

5.6 Watchdog Timer ........................................................................................................... 12

5.6.1 Watchdog Timer Control Register ...............................................................................12

5.7 Clock ............................................................................................................................. 13

5.8 Power Management...................................................................................................... 13

5.8.1 Idle Mode.....................................................................................................................13

5.8.2 Power-down Mode.......................................................................................................14

5.9 AUXR - Auxiliary Register............................................................................................. 14

5.10 Reduce EMI Emission .................................................................................................. 14

5.11 Reset............................................................................................................................. 14

6. ON-CHIP ROM CHARACTERISTICS ...................................................................................... 15

6.1 Read Operation ............................................................................................................ 15

6.2 Output Disable Condition.............................................................................................. 15

6.3 Program Operation ....................................................................................................... 15

6.4 Program Verify Operation ............................................................................................. 15

6.5 Erase Operation............................................................................................................ 15

Publication Release Date: November 6, 2006

-1-

Revision A9

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