H8SXSLASH1663M datasheet(764/1504 Pages) RENESAS

tên linh kiện	H8SX/1663M

Giải thích chi tiết về linh kiện	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

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Section 14 16-Bit Timer Pulse Unit (TPU)

Rev. 2.00 Sep. 24, 2008 Page 732 of 1468

REJ09B0412-0200

Figure 14.5 illustrates periodic counter operation.

TCNT value

TGR

H'0000

CST bit

TGF

Time

Counter cleared by TGR

compare match

Flag cleared by software or

DTC activation

Figure 14.5 Periodic Counter Operation

(2)

Waveform Output by Compare Match

The TPU can perform 0, 1, or toggle output from the corresponding output pin using a compare

match.

(a)

Example of setting procedure for waveform output by compare match

Figure 14.6 shows an example of the setting procedure for waveform output by a compare match.

Select waveform output mode

Output selection

Set output timing

Start count

[1]

[2]

[3]

[1] Select initial value from 0-output or 1-output,

and compare match output value from 0-output,

1-output, or toggle-output, by means of TIOR.

The set initial value is output on the TIOC pin

until the first compare match occurs.

[2] Set the timing for compare match generation in

TGR.

[3] Set the CST bit in TSTR to 1 to start the count

operation.

Figure 14.6 Example of Setting Procedure for Waveform Output by Compare Match

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