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SH7041A データシート(PDF) 636 Page - Renesas Technology Corp

部品番号 SH7041A
部品情報  Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
PDF  923 Pages
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メーカー  RENESAS [Renesas Technology Corp]
ホームページ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7041A データシート(HTML) 636 Page - Renesas Technology Corp

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17.5.3
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 writing side. The byte data on the side not
performing the writing is also not incremented, so the contents are those before the write.
Figure 17.8 shows the timing when an increment occurs during the T2 state of the CMCNTH write
cycle.
T1
T2
CK
Address
Internal
write signal
CMCNT
input clock
CMCNTH
CMCNT write cycle
CMCNTH
N
M
CMCNTH write data
X
X
CMCNTL
Figure 17.8 CMCNT Byte Write and Increment Contention



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