upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 435
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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16-bit Interval Timer Z (TMZ)
Figure 12-2
counter value
Reload buffer
16 - bit down
Caution
12.3.1 Steady operation
INTTZnUV
12.3 Timing
TZnR
0000
H
D0
The contents of the reload register TZnR can be changed at any time, provided
the timer is enabled. The contents is then copied to the reload buffer. However,
the counter reloads its start value from the buffer only upon underflow.
When specifying PCLK4, PLCK5, PCLK7 or PCLK9 as the count clock, a jitter
of maximum ± 1 period of PCLK2 may be applied to the TZnCNT counter’s
count clock input.
Steady operation is illustrated in the following figure.
Reload timing and interrupt generation
D0 and D1 are two different reload values.
Note that there is a delay between writing to TZnR and making the data
available in the reload buffer, depending on the previous reload value and the
chosen count clock.
Preliminary User’s Manual U17566EE1V2UM00
D 0
D 0
D0
D1
D1
D1
D1
D 0
D 0
D 0
Chapter 12
435
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