977
Figure A-1 shows timing waveforms for the address bus and the
RD
,
HWR
, and
LWR
signals
during execution of the above instruction with an 8-bit bus, using three-state access with no wait
states.
ø
Address bus
RD
HWR
,
LWR
R:W 2nd
Fetching
2nd byte of
instruction at
jump address
Fetching
1nd byte of
instruction at
jump address
Fetching
4th byte
of instruction
Fetching
3rd byte
of instruction
R:W EA
High level
Internal
operation
Figure A-1 Address Bus,
RD
,
HWR
, and
LWR
Timing
(8-Bit Bus, Three-State Access, No Wait States)