W65C816S6PG-14 Western Design Center (WDC), W65C816S6PG-14 Datasheet - Page 22

• Manufacturer Part Number: W65C816S6PG-14
• Description: Microprocessors - MPU 8/16-bit Microprocessor
• Manufacturer: Western Design Center (WDC)

Specifications of W65C816S6PG-14

• Rohs: yes
• Processor Series: 65x
• Data Bus Width: 8 bit, 16 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

3.5.11 Direct Indexed with X-d,x
With Direct Indexed with X (d,x) addressing the second byte of the instruction is added to the sum of the
Direct Register and the X Index Register to form the 16-bit effective address. The operand is always in
Bank 0.
3.5.12 Direct Indexed with Y-d,y
With Direct Indexed with Y (d,y) addressing the second byte of the instruction is added to the sum of the
Direct Register and the Y Index Register to form the 16-bit effective address. The operand is always in
Bank 0.
3.5.13 Direct Indirect Indexed-(d),y
Direct Indirect Indexed ((d),y) addressing is often referred to as Indirect Y addressing. The second byte
of the instruction is added to the Direct Register (D). The 16-bit content of this memory location is then
combined with the Data Bank register to form a 24-bit base address. The Y Index Register is added to
the base address to form the effective address.
then:
Instruction:
Operand
Address:
+
+
Instruction:
Instruction:
Operand
Address:
Operand
Address:
Opcode
DBR
00
+
effective address
base address
offset
Opcode
Opcode
(direct address)
Direct Register
00
00
+
+
+
+
Y Reg
offset
offset
offset
effective address
effective address
Direct Register
Direct Register
direct address
direct address
X Reg
Y Reg
offset
offset
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