M306V5EESP Mitsubishi, M306V5EESP Datasheet - Page 19

• Manufacturer Part Number: M306V5EESP
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
• Manufacturer: Mitsubishi

Rev. 1.0
2.3 Reset
Figure 2.3.1 Example reset circuit
Figure 2.3.2 Reset sequence
2.3.1 Software Reset
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 2.3.1 shows the example reset circuit. Figure 2.3.2 shows the reset sequence.
Writing “1” to bit 3 of the processor mode register 0 (address 0004
microcomputer. A software reset has almost the same effect as a hardware reset. The contents of internal
RAM are preserved.
X
RESET
BCLK
Address
Single-chip
IN
mode
Example when f(X
More than 20 cycles are needed
RESET
CC
max.) for at least 20 cycles. When the reset pin level is then returned to the “H”
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
BCLK
V
CC
24cycles
IN
) = 10 MHz and V
FFFFC
RESET
V
5V
0V
5V
0V
CC
16
FFFFE
16
Content of reset vector
CC
= 5V.
and ON-SCREEN DISPLAY CONTROLLER
16
) applies a (software) reset to the
0.9V
4.5V
MITSUBISHI MICROCOMPUTERS
M306V5ME-XXXSP
Content of reset vector
M306V5EESP
19