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SH7052 Datasheet(PDF) 464 Page - Renesas Technology Corp

Part # SH7052
Description  SuperHTM RISC engine
PDF  919 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7052 Datasheet(HTML) 464 Page - Renesas Technology Corp

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13.5.3
Contention between CMCNT Byte Write and Incrementation
If an increment occurs during the T2 state of the CMCNT byte write cycle, the counter write has
priority, so no increment of the write data results on the side on which the write was performed.
The byte data on the side on which writing was not performed is also not incremented, so the
contents are those before the write.
Figure 13.8 shows the timing when an increment occurs during the T2 state of the CMCNTH write
cycle.
T1
T2
P
φ
Address
Internal
write signal
CMCNT
input clock
CMCNTH
CMCNT write cycle
CMCNTH
N
M
CMCNTH write data
X
X
CMCNTL
Figure 13.8 CMCNT Byte Write and Increment Contention



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