Figure 4-2 Reset Sequence (Modes 1 and 3)
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Address
bus
RES
RD
HWR
D to D
15
8
Vector fetch
Internal
processing
Prefetch of
first program
instruction
(1), (3), (5), (7)
(2), (4), (6), (8)
(9)
(10)
Note: After a reset, the wait-state controller inserts three wait states in every bus cycle.
Address of reset vector: (1) = H'00000, (3) = H'00001, (5) = H'00002, (7) = H'00003
Start address (contents of reset vector)
Start address
First instruction of program
High
(1)
(3)
(5)
(7)
(9)
(2)
(4)
(6)
(8)
(10)
LWR
,
74
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