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W742C816 Datasheet

  • W742C816

  • Communication IC > Telephone Controller 4-bit Telephone Proc...

  • 732.10KB

  • Winbond

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Deleted:
SA5505
Deleted:
W742C811
W742E/C816
4-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
GENERAL DESCRIPTION ......................................................................................................... 3
FEATURES ................................................................................................................................. 3
PIN CONFIGURATION ............................................................................................................... 5
PIN DESCRIPTION..................................................................................................................... 6
FUNCTIONAL DESCRIPTION.................................................................................................... 7
5.1
5.2
5.3
Program Counter (PC).................................................................................................... 7
Stack Register (STACK) ................................................................................................. 8
Program Memory (ROM) ................................................................................................ 8
5.3.1
5.3.2
ROM Page Register (ROMPR)......................................................................................... 9
ROM Addressing Mode .................................................................................................. 10
Architecture .................................................................................................................... 11
RAM Page Register (PAGE) .......................................................................................... 12
WR Page Register (WRP) .............................................................................................. 12
Data Bank Register (DBKRH, DBKRL)........................................................................... 13
RAM Addressing Mode................................................................................................... 14
5.4
Data Memory (RAM)..................................................................................................... 11
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
Accumulator (ACC) ....................................................................................................... 15
Arithmetic and Logic Unit (ALU) ................................................................................... 15
Main Oscillator .............................................................................................................. 16
Sub-oscillator ................................................................................................................ 16
Dividers ......................................................................................................................... 16
Dual-clock Operation .................................................................................................... 17
Watchdog Timer (WDT)................................................................................................ 18
Timer/Counter ............................................................................................................... 19
5.12.1
5.12.2
5.12.3
5.12.4
Timer 0 (TM0)............................................................................................................... 19
Timer 1 (TM1)............................................................................................................... 20
Mode Register 0 (MR0) ................................................................................................ 21
Mode Register 1 (MR1) ................................................................................................ 22
5.13
5.14
5.15
Interrupts....................................................................................................................... 22
Stop Mode Operation.................................................................................................... 24
5.14.1
5.15.1
5.15.2
Stop Mode Wake-up Enable Flag for RC and RD Port (SEF) ...................................... 24
Hold Mode Release Enable Flag (HEF, HEFD)............................................................ 26
Interrupt Enable Flag (IEF) ........................................................................................... 26
Hold Mode Operation.................................................................................................... 24
-1-
Publication Release Date: April 15, 2005
Revision A2

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