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W78E858_06 Datasheet

  • W78E858_06

  • 8-BIT MICROCONTROLLER

  • 35頁

  • WINBOND

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W78E858 Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
GENERAL DESCRIPTION ......................................................................................................... 3
FEATURES ................................................................................................................................. 3
PIN CONFIGURATIONS ............................................................................................................ 4
PIN DESCRIPTION..................................................................................................................... 5
FUNCTIONAL DESCRIPTION ................................................................................................... 6
5.1
5.2
RAM ................................................................................................................................ 6
EEPROM ........................................................................................................................ 6
5.2.1
5.2.2
5.2.3
5.2.4
Byte Write Mode ...............................................................................................................6
Page Write Mode..............................................................................................................6
Software Protected Data Write .........................................................................................7
Command Codes for Software Data Protection Enable/Disable and Software Erase.......7
5.3
5.4
5.5
5.6
5.7
5.8
5.9
Demo Code:.................................................................................................................... 8
On-chip Flash EPROM ................................................................................................. 10
Timers 0, 1, and 2......................................................................................................... 11
Clock ............................................................................................................................. 11
Crystal Oscillator........................................................................................................... 11
External Clock............................................................................................................... 11
Power Management...................................................................................................... 11
5.9.1
5.9.2
5.9.3
Idle Mode........................................................................................................................11
Power-down Mode..........................................................................................................11
Wake-up Via External Interrupts INT0 to INT9 ...............................................................12
5.10
5.11
Reset............................................................................................................................. 13
Pulse Width Modulator System .................................................................................... 15
5.11.1
5.11.2
PWMCON (91H)...........................................................................................................15
PWMP (92H) ................................................................................................................15
SFRAL (C4H) ...............................................................................................................16
SFRAH (C5H)...............................................................................................................16
SFRFD (C6H) ...............................................................................................................16
SFRCN (C7H)...............................................................................................................17
CHPCON (BFH) ...........................................................................................................18
5.12
In-system Programming System .................................................................................. 16
5.12.1
5.12.2
5.12.3
5.12.4
5.13
5.14
5.15
5.16
In-system Programming Mode Operating Table .......................................................... 17
5.13.1
MXPSR (A2H)............................................................................................................... 18
Interrupt System ........................................................................................................... 18
External Interrupts INT2 to INT9................................................................................... 19
5.16.1
IE_1 (E8H)....................................................................................................................19
-1-
Publication Release Date: November 6, 2006
Revision A7

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