W65C832_1 Datasheet, PDF (60/64 Pages) –

WDC
THE WESTERN DESIGN CENTER, INC.
W65C832
I W65C8l6/802 I
W65C02
NMOS 6502
I10. Indexed Across Page IExtra read of IExtra read of IExtra read of
Boundary (d),Yia,x; Iinvalid address. Ilast instructionlinvalid address.
I a,y
I (Note 1)
Ifetch.
I
Ill.ROY Pulled During IIgnored (E-l) forlProcessor stops. IIgnored.
I Write Cycle
IW65C816 only. I
I
I
IProcessor stops I
I
I
I (E=O) .
I
I
or. 1:1,2:. WAI & STP instruct. IAvailable
IAvailable
r- 113.Unused OP Codes lOne reserved OP INo operation.
'" · I
-,. f
ICode specified as I
IWDM will be used I
INot available
IUnknown and some
I"hang up"
Iprocessor.
I
Iin future systems I
,I
I
I
J
:r^'(:r^:'';^:c^-1f ^{14'.':B;HanakndAlindgdress}
;:'?':;l15~; R/W';' During Read-
IThe W65C816
I
I
Iperforms a no- I
I
Ioperation.
I
I
LPBR=OO after re- INot available INot available
I set or interrupts I
I
IE=l, R/W-=O during IR/W-=O only dur-I R/W-=O during
",,,:,cY::,')M6dify-Write
PC.l''''P ,;, Instructions
IModify and Write Iing Write cycle. IModify and Write
I cycles. E=O, R/W-= I
Icycles.
,I
~,[ f';;:'c~/
I 0 only during I
I
IWrite cycle.
I
I
. 116.Pin 7
':-~1
..
IW65C802=SYNC.
IW65C816=VPA
ISYNC
I
ISYNC
I
.. 117.COP Instruction IAvailable
--^.'^.r=^I '^{. ,,:}
Signatures 00-7F
defined. Signatures
I
I
INot available
I
I
INot available
I
I
I--~~~~~~~--~------------~------------~--------------
8.1 Stack Addressing
When in the Native mode, the Stack may use memory locations 000000 to OOFFFFF.
The effective address of Stack, Stack Relative, and Stack Relative Indirect
Indexed- addressing modes will always be within this range. In the Emulation
mode, the Stack address range is 000100 to OOOlFF. The following opcodes and
addressing modes will increment or decrement beyond this range when accessing
two or three bytes.
JSL; JSR(a, x); PEA, PEl, PER, PHD, PLD, RTL; d, Si (d, s), y
8.2 Direct Addressing
8.2.1
The Direct Addressing modes are often used to access memory registers
and pointers. The effective address generated by Direct; Direct,X and
Direct,Y addressing modes will always be in the Native mode range 000000
to OOFFFF. When in the Emulation mode, the direct addressing range is
000000 to OOOOFF, except for [Direct] and [Direct], Y addressing modes
and the PEl instruction which will increment from OOOOFE or OOOOFF into
the Stack area.
MARCH 1990
47