R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 1456
R0K572030S000BE
Manufacturer Part Number
R0K572030S000BE
Description
KIT DEV FOR SH7203
Manufacturer
Renesas Electronics America
Series
Renesas Starter Kits (RSK)r
Type
MCUr
Specifications of R0K572030S000BE
Contents
CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM
Silicon Manufacturer
Renesas
Kit Contents
Board
Silicon Family Name
SH7203
Silicon Core Number
R5S72030W200FP
Tool / Board Applications
General Purpose MCU, MPU, DSP, DSC
Mcu Supported Families
SH7203
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
SH7203
Lead Free Status / Rohs Status
Compliant
- Current page: 1456 of 1686
- Download datasheet (10Mb)
Section 28 Power-Down Modes
28.3.2
(1)
The LSI switches from a program execution state to software standby mode by executing the
SLEEP instruction when the STBY bit and DEEP bit in STBCR are 1 and 0 respectively. In
software standby mode, not only the CPU but also the clock and on-chip peripheral modules halt.
The clock output from the CKIO pin also stops in clock modes 0, 1 and 3.
The contents of the CPU and cache registers remain unchanged. Some registers of on-chip
peripheral modules are, however, initialized. As for the states of on-chip peripheral module
registers in software standby mode, see section 30.3, Register States in Each Operating Mode.
The CPU takes one cycle to finish writing to STBCR, and then executes processing for the next
instruction. However, it takes one or more cycles to actually write. Therefore, execute a SLEEP
instruction after reading STBCR to have the values written to STBCR by the CPU to be definitely
reflected in the SLEEP instruction.
The procedure for switching to software standby mode is as follows:
1. Clear the TME bit in the WDT's timer control register (WTCSR) to 0 to stop the WDT.
2. Set the WDT's timer counter (WTCNT) to 0 and the CKS[2:0] bits in WTCSR to appropriate
3. After setting the STBY and DEEP bits in STBCR to 1 and 0 respectively, read STBCR. Then,
Rev. 3.00 Sep. 28, 2009 Page 1424 of 1650
REJ09B0313-0300
values to secure the specified oscillation settling time.
execute a SLEEP instruction.
Transition to Software Standby Mode
Software Standby Mode
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