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Chapter 9
16-Bit Timer/Event Counter P
User’s Manual U16580EE3V1UD00
9.5.5 One-shot pulse mode (TPnMD2 to TPnMD0 = 011B)
In the one-shot pulse mode, setting TPnCE = 1 causes waiting on TPnEST bit setting (1) or TTRGPn
pin edge detection trigger
Note 1
with the 16-bit counter held at FFFFH. The 16-bit counter starts
counting up upon trigger input, and upon a match between the value of the 16-bit counter and the value
of the CCR1 buffer register transferred from the TPnCR1 register, TOPn1 becomes high level; Upon a
match between the value of the 16-bit counter and the value of the CCR0 register transferred from the
TPnCCR0 register, TOPn1 becomes low level and the 16-bit counter is cleared to 0000H and stops.
Any trigger input past the first one during 16-bit counter operation is ignored. Be sure to input the
second and subsequent triggers when the 16-bit counter has stopped at 0000H. In the one-shot pulse
mode, the TPnCCR0 and TPnCCR1 registers can be rewritten when TPnCE = 1. The setting values
rewritten to the TPnCCR0 and TPnCCR1 registers become valid following execution of a write
instruction from the CPU, at which time they are transferred to the CCR0 buffer register and the CCR0
buffer register through anytime write, and become the values for comparison with the 16-bit counter
value. The one-shot pulse waveform is output from the TOPn1 pin. The TOPn0 pin performs toggle
output upon a match between the 16-bit counter and the TPnCCR0 register
Note 2
.
Since the TPnCCR0 and TPnCCR1 registers have their function fixed to that of a compare register in
the one-shot pulse mode, they cannot be used for capture operation in this mode.
Notes: 1.
External trigger input pin (TTRGPn) is not available for TMP8 (n = 8).
2.
Output pin (TOPn0) is not available for TMP8 (n = 8).
Caution:
In the one-shot pulse mode, the external event clock input (TEVTPn) is prohibited
(TPnCTL1.TPnEEE = 0).
Remark:
n = 0 to 8
Содержание MuPD70F3187
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Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
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Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
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