DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 599
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 11 Multi-Function Timer Pulse Unit 2 (MTU2)
(h)
Register Data Updating
In complementary PWM mode, the buffer register is used to update the data in a compare register.
The update data can be written to the buffer register at any time. There are five PWM duty and
carrier cycle registers that have buffer registers and can be updated during operation.
There is a temporary register between each of these registers and its buffer register. When
subcounter TCNTS is not counting, if buffer register data is updated, the temporary register value
is also rewritten. Transfer is not performed from buffer registers to temporary registers when
TCNTS is counting; in this case, the value written to a buffer register is transferred after TCNTS
halts.
The temporary register value is transferred to the compare register at the data update timing set
with bits MD3 to MD0 in the timer mode register (TMDR). Figure 11.43 shows an example of
data updating in complementary PWM mode. This example shows the mode in which data
updating is performed at both the counter crest and trough.
When rewriting buffer register data, a write to TGRD_4 must be performed at the end of the
update. Data transfer from the buffer registers to the temporary registers is performed
simultaneously for all five registers after the write to TGRD_4.
A write to TGRD_4 must be performed after writing data to the registers to be updated, even when
not updating all five registers, or when updating the TGRD_4 data. In this case, the data written to
TGRD_4 should be the same as the data prior to the write operation.
Rev. 3.00 Sep. 28, 2009 Page 567 of 1650
REJ09B0313-0300
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