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W78E858 Datasheet

  • W78E858

  • 8 BIT MICROCONTROLLER

  • 1084.76KB

  • 33頁

  • WINBOND

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W78E858 Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
6.
GENERAL DESCRIPTION ......................................................................................................... 3
FEATURES ................................................................................................................................. 3
PIN CONFIGURATIONS ............................................................................................................ 4
PIN DESCRIPTION..................................................................................................................... 5
BLOCK DIAGRAM ...................................................................................................................... 6
FUNCTIONAL DESCRIPTION ................................................................................................... 6
6.1
6.2
RAM ................................................................................................................................ 6
EEPROM ........................................................................................................................ 7
6.2.1
6.2.2
6.2.3
6.2.4
Byte Write Mode ...............................................................................................................7
Page Write Mode..............................................................................................................7
Software Protected Data Write .........................................................................................7
Command Codes for Software Data Protection Enable/Disable and Software Erase.......7
6.3
6.4
6.5
6.6
6.7
6.8
6.9
Demo Code:.................................................................................................................... 8
On-chip Flash EPROM ................................................................................................. 11
Timers 0, 1, and 2......................................................................................................... 11
Clock ............................................................................................................................. 11
Crystal Oscillator........................................................................................................... 11
External Clock............................................................................................................... 11
Power Management...................................................................................................... 11
6.9.1
6.9.2
6.9.3
Idle Mode........................................................................................................................11
Power-down Mode..........................................................................................................12
Wake-up Via External Interrupts INT0 to INT9 ...............................................................12
6.10
6.11
Reset............................................................................................................................. 13
Pulse Width Modulator System .................................................................................... 14
6.11.1
6.11.2
PWMCON (91H)...........................................................................................................14
PWMP (92H) ................................................................................................................14
SFRAL (C4H) ...............................................................................................................16
SFRAH (C5H)...............................................................................................................16
SFRFD (C6H)...............................................................................................................16
SFRCN (C7H) ..............................................................................................................16
CHPCON (BFH) ...........................................................................................................17
6.12
In-system Programming System .................................................................................. 15
6.12.1
6.12.2
6.12.3
6.12.4
6.13
6.14
6.15
6.16
In-system Programming Mode Operating Table .......................................................... 16
6.13.1
MXPSR (A2H)............................................................................................................... 17
Interrupt System ........................................................................................................... 17
External Interrupts INT2 to INT9................................................................................... 18
Publication Release Date: May 5, 2004
Revision A4
-1-

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