D12320VF25IV Datasheet, PDF (555/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 10 16-Bit Timer Pulse Unit (TPU)
Contention between TCNT Write and Increment Operations: If incrementing occurs in the T₂
state of a TCNT write cycle, the TCNT write takes precedence and TCNT is not incremented.
Figure 10.50 shows the timing in this case.
TCNT write cycle
T₁
T₂
φ
Address
TCNT address
Write signal
TCNT input
clock
TCNT
N
M
TCNT write data
Figure 10.50 Contention between TCNT Write and Increment Operations
Rev.6.00 Sep. 27, 2007 Page 523 of 1268
REJ09B0220-0600