HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 553

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

13.6
13.6.1
Setting the MSTP bits in the standby control register to 1 halts the supply of clocks to the
corresponding on-chip peripheral modules. This function can be used to reduce power
consumption in normal mode. When changing the setting of an MSTP bit to use the module
standby function, be sure to halt operation of the module whose clock supply is to be stopped
before setting the corresponding MSTP bit to 1.
In the module standby state, the states of the external pins of the on-chip peripheral modules differ
depending on the on-chip peripheral module and I/O port settings. Register state is as same as in
standby mode. When changing the setting of an MSTP bit to use the module standby function, be
sure to halt operation of the module whose clock supply is to be stopped before setting the
corresponding MSTP bit to 1.
13.6.2
The module standby function can be canceled by clearing the MSTP bits to 0, or by a power-on
reset.
When canceling the module standby function by clearing the corresponding MSTP bit, be sure to
read the relevant MSTP bit to confirm that it has been cleared to 0.
Module Standby Function
Transition to Module Standby Function
Canceling Module Standby Function
Rev. 3.00
Section 13
Jan. 18, 2008
Power-Down Modes
REJ09B0033-0300
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