W78E054D Datasheet, PDF (1/89 Pages) List of Unclassifed Manufacturers – 8-bit microcontroller

W78E054D/W78E052D Data Sheet
Table of Contents-
1 GENERAL DESCRIPTION ......................................................................................................... 4
2 FEATURES ................................................................................................................................. 5
3 PARTS INFORMATION LIST ..................................................................................................... 6
4 PIN CONFIGURATIONS............................................................................................................. 7
5 PIN DESCRIPTIONS .................................................................................................................. 9
6 BLOCK DIAGRAM .................................................................................................................... 11
7 FUNCTIONAL DESCRIPTION.................................................................................................. 12
7.1 On-Chip Flash EPROM ................................................................................................ 12
7.2 I/O Ports ........................................................................................................................ 12
7.3 Serial I/O ....................................................................................................................... 12
7.4 Timers ........................................................................................................................... 12
7.5 Interrupts ....................................................................................................................... 12
7.6 Data Pointers ................................................................................................................ 12
7.7 Architecture ................................................................................................................... 13
7.7.1 ALU ................................................................................................................................13
7.7.2 Accumulator ...................................................................................................................13
7.7.3 B Register.......................................................................................................................13
7.7.4 Program Status Word .....................................................................................................13
7.7.5 Scratch-pad RAM ...........................................................................................................13
7.7.6 Stack Pointer ..................................................................................................................13
8 MEMORY ORGANIZATION...................................................................................................... 14
8.1 Program Memory (on-chip Flash) ................................................................................. 14
8.2 Scratch-pad RAM and Register Map ............................................................................ 14
8.2.1 Working Registers ..........................................................................................................16
8.2.2 Bit addressable Locations ..............................................................................................17
8.2.3 Stack ..............................................................................................................................17
9 SPECIAL FUNCTION REGISTERS.......................................................................................... 18
9.1 SFR Detail Bit Descriptions .......................................................................................... 20
10 INSTRUCTION.......................................................................................................................... 34
10.1 Instruction Timing.......................................................................................................... 42
11 POWER MANAGEMENT .......................................................................................................... 43
11.1 Idle Mode ...................................................................................................................... 43
11.2 Power Down Mode........................................................................................................ 43
12 RESET CONDITIONS............................................................................................................... 44
12.1 Sources of reset............................................................................................................ 44
12.1.1 External Reset ..............................................................................................................44
12.1.2 Software Reset .............................................................................................................44
12.1.3 Watchdog Timer Reset.................................................................................................44
12.2 Reset State ................................................................................................................... 44
13 INTERRUPTS ........................................................................................................................... 45
13.1 Interrupt Sources .......................................................................................................... 45
Publication Release Date: Jun 9, 2015
-1-
Revision A13