Fujitsu MB90335 Series Hardware Manual page 163

CHAPTER 6 LOW-POWER CONSUMPTION MODE
6.3 Low-power Consumption Mode Control Register (LPMCR)
Table 6.3-1 Function Description of Each Bit of Low-power Consumption Mode Control Register (LPMCR)
Bit name
STP:
bit7
Stop mode bit
SLP:
bit6
Sleep mode bit
SPL:
Pin state
bit5 specification bit
(At the stop mode of
the time-base timer)
RST:
bit4 Internal reset signal
generation bit
TMD:
bit3 Time-base timer
mode bit
CG1,CG0:
bit2, Temporary CPU
bit1 clock stop cycle
count selection bits
Reserved:
bit0
Reserved bit
142
• This bit indicates the transition to the stop mode.
• Writing "1" to this bit changes the stop mode.
• Writing "0" to this bit has no influence on operation.
• Cleared to "0" by generation of a reset or interrupt request.
• The bit always returns "0" when read.
• This bit indicates the transition to the sleep mode.
• Writing "1" to this bit changes the sleep mode.
Writing "0" to this bit has no influence on operation.
• Cleared to "0" by generation of a reset or interrupt request.
• The bit always returns "0" when read.
• Valid only while in the time-base timer, or stop mode.
• A "0" in this bit causes the clock to remain at the level of the external pin.
• An external pin is made high impedance in case of "1".
• The bit is initialized to "0" at a reset.
• Writing "0" to this generator generates the internal reset signal three machine cycle.
• Writing "1" to this bit has no influence on operation.
• The bit always returns "1" when read.
• This bit indicates the transition to the time-base timer mode.
• Writing "0" to this bit while in main or PLL clock mode changes the time-base timer
mode.
• Initialized to "1" by generation of a reset or interrupt request.
• The bit always returns "1" when read.
• Bit used for setting the number of suspension cycles of the CPU clock for CPU
intermittent operation function.
• Stops the CPU clock supply for the specified number of cycles each time the instruction
is executed once.
• Selectable from four types of clocks counts.
• The bit is initialized to "00
• Be sure to set this bit to "0".
FUJITSU MICROELECTRONICS LIMITED
Functions
" at a reset.
B
MB90335 Series
CM44-10137-6E