H8SX1663 datasheet(598/1158 Pages) RENESAS

Part #	H8SX1663

Description	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

PDF	1158 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 10 16-Bit Timer Pulse Unit (TPU)

Rev.1.00 Jun. 07, 2006 Page 546 of 1102

REJ09B0294-0100

• When TGR is an input capture register

When input capture occurs, the value in TCNT is transferred to TGR and the value previously

held in TGR is transferred to the buffer register.

This operation is illustrated in figure 10.13.

Buffer register

Timer general

TCNT

Input capture

signal

Figure 10.13 Input Capture Buffer Operation

(1) Example of Buffer Operation Setting Procedure

Figure 10.14 shows an example of the buffer operation setting procedure.

Select TGR function

Buffer operation

Set buffer operation

Start count

[1]

[2]

[3]

[1] Designate TGR as an input capture register or

output compare register by means of TIOR.

[2] Designate TGR for buffer operation with bits

BFA and BFB in TMDR.

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

operation.

Figure 10.14 Example of Buffer Operation Setting Procedure

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