w65c816s Western Design Center, Inc., w65c816s Datasheet - Page 10

• Manufacturer Part Number: w65c816s
• Description: W65c816s 8/16?bit Microprocessor
• Manufacturer: Western Design Center, Inc.

D0-D7
A8-A15
A0-A7
BE
Figure 2-1 W65C816S Internal Architecture Simplified Block Diagram
PROG. BANK (PBR)
DATA BANK (DBR)
PROG. COUNTER
STACK POINTER
ACCUMULATOR
PREDECODER
(PC) (16 BITS)
(S) (16 BITS)
(C) (16 BITS)
TRANSFER
SWITCHES
(A) (8 BITS)
(B) (8 BITS)
DIRECT (D)
(16 BITS)
(16 BITS)
(16 BITS)
(16 BITS)
INDEX X
INDEX Y
(8 BITS)
(8 BITS)
LATCH/
DATA
ALU
INSTRUCTION REGISTER
PROCESSOR
INTERUPT
STATUS (P)
(8 BITS)
LOGIC
(8 BITS)
TIMING
CONT.
ERATOR
CLOCK
GEN-
IRQB
NMIB
RESB
ABORTB
RWB
MLB
E
MX
VPA
VDA
VPB
RDY
PHI2
10
VDD
VSS