M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 30
M30622MA-XXXFP
Manufacturer Part Number
M30622MA-XXXFP
Description
16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.M30622MA-XXXFP.pdf
(621 pages)
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Reset
Reset
Figure 1.6.1. Example reset circuit
Figure 1.6.2. Reset sequence
There are two kinds of resets; hardware and software. In both cases, operation is the same after the reset.
(See “Software Reset” for details of software resets.) This section explains on hardware resets.
When the supply voltage is in the range where operation is guaranteed, a reset is effected by holding the
reset pin level “L” (0.2V
level while main clock is stable, the reset status is cancelled and program execution resumes from the
address in the reset vector table.
Figure 1.6.1 shows the example reset circuit. Figure 1.6.2 shows the reset sequence.
mode BYTE = “H”
mode BYTE = “L”
Microprocessor
RD
Microprocessor
Address
CS0
X
RESET
BCLK
Address
WR
CS0
RD
WR
Address
Single chip
IN
mode
More than 20 cycles are needed
Example when V
RESET
CC
max.) for at least 20 cycles. When the reset pin level is then returned to the “H”
BCLK
24cycles
V
CC
CC
= 5V
.
FFFFC
RESET
FFFFC
FFFFC
V
5V
5V
0V
CC
0V
16
16
FFFFE
16
16
Content of reset vector
FFFFD
FFFFE
16
4.0V
0.8V
16
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Content of reset vector
FFFFE
16
Content of reset vector
Mitsubishi microcomputers
M16C / 62 Group
15
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