W65C816S Datasheet, PDF (46/62 Pages) List of Unclassifed Manufacturers – Microprocessor

The Western Design Center, Inc.
Address Mode
16a. Direct, X d,x
ADC, AND, BIT, CMP, EOR, LDA
LDY, ORA, SBC, STA, STY, STZ,
12 OpCodes,2 bytes, 4,5,and 6 cycles
16b. Direct, X (R-M-W) d,x
ASL, DEC, INC, LSR, ROL, ROR,
6 OpCodes, 2 bytes, 6,7,8 and 9 cycles
17. Direct, Y d,y
LDX, STX
2 OpCodes, 2 bytes, 4,5 and 6 cycles
18.Immediate #
ADC, AND, BIT, CMP, CPX, CPY,
EOR, LDA, LDX, LDY, ORA, REP,
SEC, SEP
14 OpCodes, 2 and 3 bytes, 2 and 3
cycles
19a. Implied i
CLC, CLD, CLI, CLV, DEX, DEY,
INX, INY, NOP, SEC, SED, SEI,
TAX, TAY, TCD, TCS, TDC, TSC,
TSX, TXA, TXS, TXY, TYA, TYX,
XCE
25 OpCodes, 1 byte, 2 cycles
19b. Implied i
XBA
1 OpCode, 1 byte, 3 cycles
19c. Stop the Clock
STP
1 OpCode
1 byte
RESB=1
3 cycles
RESB=0
RESB=0
RESB=1
(See 22a. Stack Hardware Interrupt)
19d. Wait for Interrupt
WAI
1 OpCode,1 byte
3 cycles
IRQB, NMIB
Note
(2)
(1)
(2)
(1)
(3),(17)
(1)
(2)
(1)
(1)(6)
RDY=1
(9)RDY=1
RDY=0
RDY=1
Table 6-7 (continued)
Cycle VPB
MLB
VDA
(14)
1
1
1
1
2
1
1
0
2a
1
1
0
3
1
1
0
4
1
1
1
4a
1
1
1
1
1
1
1
2
1
1
0
2a
1
1
0
3
1
1
0
4
1
0
1
4a
1
0
1
5
1
0
0
6a
1
0
1
6
1
0
1
1
1
1
1
2
1
1
0
2a
1
1
0
3
1
1
0
4
1
1
1
4a
1
1
1
1
1
1
1
2
1
1
0
2a
1
1
0
1
1
1
1
2
1
1
0
1
1
1
1
2
1
1
0
3
1
1
0
1
1
1
1
2
1
1
0
3
1
1
0
1c
1
1
0
1b
1
1
0
1a
1
1
0
1
1
1
1
1
1
1
1
2
1
1
0
3
1
1
0
1
1
1
1
VPA
(14)
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
1
0
0
1
0
0
0
0
0
1
1
0
0
1
W65C816S Data Sheet
Address Bus
(15)
PBR,PC
PBR,PC+1
PBR,PC+1
PBR,PC+1
0,D+DO+X
0,D+DO+X+1
PBR,P C
PBR,PC+1
PBR,PC+1
PBR,PC+1
0,D+DO+X
0,D+DO+X+1
0,D+DO+X+1
0,D+DO+X+1
0,D+DO+X
PBR,PC
PBR,PC+1
PBR,PC+1
PBR,PC+1
0,D+DO+Y
0,D+DO+Y+1
PBR,PC
PBR,PC+1
PBR,PC+2
Data Bus
OpCode
DO
IO
IO
Data Low
Data High
OpCode
DO
IO
IO
Data Low
Data High
IO
Data High
Data Low
OpCode
DO
IO
IO
Data Low
Data High
OpCode
IDL
IDH
RWB
1
1
1
1
1/0
1/0
1
1
1
1
1
1
1
0
0
1
1
1
1
1/0
1/0
1
1
1
PBR,PC
PBR,PC+1
OpCode
1
IO
1
PBR,PC
PBR,PC+1
PBR,PC+1
PBR,PC
PBR,PC+1
PBR,PC+1
PBR,PC+1
PBR,PC+1
PBR,PC+1
PBR,PC+1
PBR,PC
PBR,PC+1
PBR,PC+1
PBR,PC+1
OpCode
1
IO
1
IO
1
OpCode
1
IO
1
IO
1
RES (BRK) 1
RES (BRK) 1
RES (BRK) 1
BEGIN
1
OpCode
1
IO
1
IO
1
IRQ(BRK) 1
(see Table 6-8 for abbreviations
The Western Design Center
W65C816S
46