hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 79

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

When system power is turned on or off, the RES pin should be held low.
Figure 3.1 shows the reset sequence starting from RES input.
64
RES
ø
Internal
address bus
Internal read
signal
Internal write
signal
Internal data
bus (16-bit)
(1) Reset exception handling vector address (H'0000)
(2) Program start address
(3) First instruction of program
Figure 3.1 Reset Sequence
Vector fetch
Reset cleared
(2)
(1)
Internal
processing
Program initial
instruction prefetch
(2)
(3)