WDC W65C816S Manuals

Manuals and User Guides for WDC W65C816S. We have 1 WDC W65C816S manual available for free PDF download: Datasheet

WDC W65C816S Datasheet

WDC W65C816S Datasheet (56 pages)

8/16-bit Microprocessor

Brand: WDC | Category: Computer Hardware | Size: 1 MB

Table of Contents

Table of Contents
2
1 Introduction

5
- Features of the W65C816S
  5
2 W65C816S Functional Description

6
- Accumulator (A)
  6
- Arithmetic and Logic Unit (ALU)
  6
- Data Bank Register (DBR)
  6
- Instruction Register (IR)
  6
- Timing Control Unit (TCU)
  6
- Direct (D)
  7
- Index (X and Y)
  7
- Processor Status Register (P)
  7
- Program Bank Register (PBR)
  7
- Program Counter (PC)
  7
- Stack Pointer (S)
  7
- Figure 2-1 W65C816S Internal Architecture Simplified Block Diagram
  8
- November
  9
- Table 2-1 W65C816S Microprocessor Programming Model
  9
- Figure 2-2 W65C816S 40 Pin DIP Pinout
  10
- Figure 2-3 W65C816S 44 Pin PLCC Pinout
  10
- November
  10
- Pin Function Description
  10
- Figure 2-4 W65C816S 44 PIN QFP Pinout
  11
- Abort (ABORTB)
  12
- Address Bus (A0-A15)
  12
- Bus Enable (BE)
  12
- Table 2-2 Pin Function Table
  
  12
- Data/Bank Address Bus (D0-D7)
  13
- Emulation Status (E)
  13
- Interrupt Request (IRQB)
  13
- Memory Lock (MLB)
  13
- Memory/Index Select Status (MX)
  13
- Non-Maskable Interrupt (NMIB)
  14
- Phase 2 in (PHI2)
  14
- Read/Write (RWB)
  14
- Ready (RDY)
  14
- Reset (RESB)
  15
- Valid Data Address (VDA) and Valid Program Address (VPA)
  15
- VDD and VSS
  15
- Vector Pull (VPB)
  15
3 Addressing Modes

16
- Reset and Interrupt Vectors
  16
- Stack
  16
- Direct
  16
- Program Address Space
  16
- Data Address Space
  16
  - Absolute-A
    17
  - Absolute Indexed Indirect-(A,X)
    17
  - Absolute Indexed with X-A,X
    17
  - Absolute Indexed with Y-A,Y
    17
  - Absolute Indirect-(A)
    18
  - Absolute Long Indexed with X-Al,X
    18
  - Absolute Long-Al
    18
  - Accumulator-A
    18
  - Block Move-Xyc
    19
  - Direct Indexed Indirect-(D,X)
    19
  - Direct Indexed with X-D,X
    20
  - Direct Indexed with Y-D,Y
    20
  - Direct Indirect Indexed-(D),Y
    20
  - Direct Indirect Long Indexed-[D],Y
    21
  - Direct Indirect Long-[D]
    21
  - Direct Indirect-(D)
    21
  - Direct-D
    22
  - Immediate
    22
  - Implied-I
    22
  - Program Counter Relative Long-Rl
    22
  - Program Counter Relative-R
    22
  - Stack-S
    22
  - Stack Relative-D,S
    23
  - Stack Relative Indirect Indexed-(D,S),Y
    23
Table 3-1 Addressing Mode Summary

24
Table 4-1 Absolute Maximum Ratings

25
4 Timing, Ac and DC Characteristics

25
5 Operation Tables

29
Figure 5-1 Bank Address Latching Circuit

44
6 Recommended W65C816S Assembler Syntax Standards

45
- Comments
  45
- Directives
  45
- The Source Line
  45
  - The Label Field
    45
  - The Operation Code Field
    45
  - The Operand Field
    46
  - Table 6-1 Alternate Mnemonics
    46
  - Table 6-2 Address Mode Formats
    47
  - Comment Field
    48
- Table 6-3 Byte Selection Operator
  
  48
- Table 7-1 Caveats
  
  49
- ABORTB Input
  50
- Absolute Indexed Addressing
  50
- Direct Addressing
  50
- Stack Addressing
  50
- VDA and VPA Valid Memory Address Output Signals
  50
- All Opcodes Function in All Modes of Operation
  51
- DB/BA Operation When RDY Is Pulled Low
  51
- How Interrupts Affect the Program Bank and the Data Bank Registers
  51
- Indirect Jumps
  51
- MX Output
  51
- Switching Modes
  51
- Binary Mode
  52
- Co-Processor (COP) Signatures
  52
- MVN and MVP Affects on the Data Bank Register
  52
- RDY Pulled During Write
  52
- Stop-The-Clock (STP) Instruction
  52
- Wait for Interrupt (WAI) Instruction
  52
- WDM Opcode Use
  52
- Accumulator Switching from 8-Bit to 16-Bit
  53
- BRK Instruction
  53
- Interrupt Priorities
  53
- Stack Transfers
  53
- Transfers from 8-Bit to 16-Bit, or 16-Bit to 8-Bit Registers
  53
7 Caveats

49
8 Hard Core Model

54
- W65C816 Core Information
  54
9 Soft Core Rtl Model

54
- W65C816 Synthesizable RTL-Code in Verilog HDL
  54
10 Ordering Information

55

Advertisement

Advertisement

Related Products

WDC 65 Series

WDC Categories

Computer Hardware

More WDC Manuals