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H8/3021 Datasheet(PDF) 290 Page - Renesas Technology Corp

Part # H8/3021
Description  16-Bit Single-Chip Microcomputer
PDF  712 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3021 Datasheet(HTML) 290 Page - Renesas Technology Corp

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8. 16-Bit Integrated Timer Unit (ITU)
Rev.2.00 Mar. 22, 2007 Page 266 of 684
REJ09B0352-0200
Timing of Disabling of ITU Output by External Trigger: If the XTGD bit is cleared to 0 in
TOCR in reset-synchronized PWM mode or complementary PWM mode, when an input capture A
signal occurs in channel 1, the master enable bits are cleared to 0 in TOER, disabling ITU output.
Figure 8.55 shows the timing.
φ
TIOCA1 pin
TOER
ITU output
I/O port
ITU output
I/O port
Generic
input/output
Generic
input/output
ITU output
ITU output
Input capture
signal
ITU output
pins
NN
H'C0
H'C0
N: Arbitrary setting (H'C1 to H'FF)
Figure 8.55 Timing of Disabling of ITU Output by External Trigger (Example)
Timing of Output Inversion by TOCR: The output levels in reset-synchronized PWM mode and
complementary PWM mode can be inverted by inverting the output level select bits (OLS4 and
OLS3) in TOCR. Figure 8.56 shows the timing.
φ
Address
TOCR
ITU output pin
TOCR address
Inverted
T
1
T
2
T
3
Figure 8.56 Timing of Inverting of ITU Output Level by Writing to TOCR (Example)



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