DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 1456
DS72030W200FPV
Manufacturer Part Number
DS72030W200FPV
Description
MPU, 32BIT, SH7203, ROMLESS, 240QFP
Manufacturer
Renesas Electronics America
Series
SH7200r
Datasheet
1.R5S72030W200FP.pdf
(1686 pages)
Specifications of DS72030W200FPV
Core Size
32bit
Program Memory Size
32KB
Cpu Speed
200MHz
Digital Ic Case Style
QFP
No. Of Pins
240
Supply Voltage Range
1.1V To 1.3V
Operating Temperature Range
-20°C To +85°C
Svhc
No SVHC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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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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