w65c816s Microprocessor Data Sheet.pdf
w65c816s Microprocessor Data Sheet.pdf
w65c816s Microprocessor Data Sheet.pdf
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The Western Design Center, Inc.W65C816S <strong>Data</strong> <strong>Sheet</strong>Table 2-1 W65C816S <strong>Microprocessor</strong> Programming Model8 BITS 8 BITS 8 BITS<strong>Data</strong> Bank Register(DBR)X Register (XH) X Register (XL)<strong>Data</strong> Bank Register(DBR)Y Register (YH) Y Register (YL)00 Stack Register (SH) Stack Register (SL)Accumulator (B) (C) Accumulator (A)Program Bank Register(PBR)Program (PCH) Counter (PCL)00 Direct Register (DH) Direct Register (DL)Shaded blocks = 6502 registers1 BBRK command:1=BRK 0=IRQN V M X D I Z CCarry 1=trueZero 1=result zeroIRQ disable 1=disableDecimal mode 1=trueIndex Register Select 1=8-bit, 0=16-bitMemory Select 1=8-bit, 0=16-bitOverflow 1=trueEmulation 1=6502 Emulation ModeNegative 1=negative0=Native ModeEThe Western Design Center W65C816S 12
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