M306V5EESP Mitsubishi, M306V5EESP Datasheet - Page 31

• 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
Table 2.5.2 Port status during stop mode
Table 2.5.3 Port status during wait mode
2.5.5 Wait Mode
2.5.4 Stop Mode
When a WAIT instruction is executed, the BCLK stops and the microcomputer enters the wait mode. In
this mode, oscillation continues but the BCLK and watchdog timer stop. Writing “1” to the WAIT peripheral
function clock stop bit and executing a WAIT instruction stops the clock being supplied to the internal
peripheral functions, allowing power dissipation to be reduced. Table 2.5.3 shows the status of the ports
in wait mode.
Wait mode is cancelled by a hardware reset or an interrupt. If an interrupt is used to cancel wait mode, the
microcomputer restarts from the interrupt routine using as BCLK, the clock that had been selected when
the WAIT instruction was executed.
Writing “1” to the all-clock stop control bit (bit 0 at address 0007
puter enters stop mode. In stop mode, the content of the internal RAM is retained provided that V
remains above 4.5V.
Because the oscillation, BCLK, f
such as the A-D converter and watchdog timer do not function. However, timer B operates provided that
the event counter mode is set to an external pulse, and UARTi (i = 0, 2) functions provided an external
clock is selected. Table 2.5.2 shows the status of the ports in stop mode.
Stop mode is cancelled by a hardware reset or an interrupt. If an interrupt is to be used to cancel stop
mode, that interrupt must first have been enabled. If returning by an interrupt, that interrupt routine is
executed.
When shifting from high-speed/medium-speed mode to stop mode and at a reset, the main clock division
select bit 0 (bit 6 at address 0006
mode to stop mode, the value before stop mode is retained.
Port
Pin
Port
Pin
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
1
to f
16
) is set to “1.” When shifting from low-speed/low power dissipation
32
, f
1SIO2
to f
32SIO2
, and f
Retains status before stop mode
Retains status before wait mode
AD
16
stops in stop mode, peripheral functions
) stops all oscillation and the microcom-
and ON-SCREEN DISPLAY CONTROLLER
State
State
MITSUBISHI MICROCOMPUTERS
M306V5ME-XXXSP
M306V5EESP
CC
31