M306V2 Mitsubishi, M306V2 Datasheet - Page 41

• Manufacturer Part Number: M306V2
• 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
2.5.4 Clock Output
2.5.5 Stop Mode
__________
Address bus, data bus, CS0 to CS3
_____
RD, WR, BHE, WRL, WRH
HLDA, BCLK
ALE
Port
CLK
In single-chip mode, the clock output function select bits (bits 0 and 1 at address 0006
fc to be output from the P5
address 0006
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
functions 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.
OUT
______ ________ ________ _________
When fc selected
When f
16
) is set to “1,” the output of f
Pin
8
, f
32
_______
selected
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
7
/CLK
_______
1
to f
16
OUT
) is set to “1.” When shifting from low-speed/low power dissipation
32
pin. When the WAIT peripheral function clock stop bit (bit 2 at
, f
Retains status before stop mode
“H”
“H”
“H”
Retains status before stop mode Retains status before stop mode
Valid only in single-chip mode
Valid only in single-chip mode
1SIO2 to
Memory expansion mode
8
Microprocessor mode
and f
f
32SIO2
32
stops when a WAIT instruction is executed.
, f
C
, f
C32
16
, and f
) stops all oscillation and the microcom-
and ON-SCREEN DISPLAY CONTROLLER
AD
MITSUBISHI MICROCOMPUTERS
“H”
Retains status before stop mode
stops in stop mode, peripheral
M306V2ME-XXXFP
Single-chip mode
M306V2EEFP
16
) enable f
8
, f
32
, or
CC
41