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SH7721 Datasheet(PDF) 596 Page - Renesas Technology Corp

Part # SH7721
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  1524 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7721 Datasheet(HTML) 596 Page - Renesas Technology Corp

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Section 15
16-Bit Timer Pulse Unit (TPU)
Rev. 3.00 Jan. 18, 2008 Page 534 of 1458
REJ09B0033-0300
15.4.3
Buffer Operation
Buffer operation, enables TGRC and TGRD to be used as buffer registers.
Table 15.6 shows the register combinations used in buffer operation.
Table 15.6
Register Combinations in Buffer Operation
Timer General Register
Buffer Register
TGRA
TGRC
TGRB
TGRD
When a compare match occurs, the value in the buffer register for the corresponding channel is
transferred to the timer general register. For update timing from a buffer register, rewriting on
compare match occurrence or on counter cleaning can be selected.
This operation is illustrated in figure 15.8.
Buffer register
Timer general
register
TCNT
Comparator
Compare match signal
Counter cleaning signal
BFWT bit
Figure 15.8
Compare Match Buffer Operation



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