W65C02S6TPG-14 Western Design Center (WDC), W65C02S6TPG-14 Datasheet - Page 15

• Manufacturer Part Number: W65C02S6TPG-14
• Description: Microprocessors - MPU 8-bit Microprocessor
• Manufacturer: Western Design Center (WDC)

Specifications of W65C02S6TPG-14

• Rohs: yes
• Processor Series: 65x
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 14 MHz
• Operating Supply Voltage: 1.8 V to 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: PDIP-40
• Minimum Operating Temperature: - 40 C
• Factory Pack Quantity: 10

The W65C02S is capable of directly addressing 65,536 bytes of memory. The Program Address and
Data Address space is contiguous throughout the 65,536 byte address space. Words, arrays, records, or
any data structures may span the 65,536 byte address space.
descriptions provide additional detail as to how effective addresses are calculated. Sixteen addressing
modes are available for the W65C02S.
addressing modes.
4.1
With Absolute addressing the second and third bytes of the instruction from the 16-bit address.
4.2
With the Absolute Indexed Indirect addressing mode, the X Index Register is added to the second and
third byes of the instruction to form an address to a pointer. This address mode is only used with the JMP
instruction and the program Counter is loaded with the first and second bytes at this pointer.
4.3
With the Absolute Indexed with X addressing mode, the X Index Register is added to the second and third
bytes of the instruction to form the 16-bits of the effective address.
4 ADDRESSING MODES
Absolute a
Absolute Indexed Indirect (a,x)
Absolute Indexed with X a,x
Byte:
Instruction:
Operand Address:
Byte:
Instruction:
Indirect Base address:
Indirect address:
New PC value:
Byte:
Instruction:
Operand address:
This address space has special significance within certain
ADH
ADH
ADH
2
2
2
+
+
effective address
effective address
ADH
ADH
ADH
ADL
ADL
ADL
indirect address
1
1
1
The following addressing mode
OpCode
OpCode
OpCode
ADL
ADL
ADL
X
X
0
0
0
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