H8SXSLASH1663R datasheet(783/1504 Pages) RENESAS

Il numero della parte	H8SX/1663R

Spiegazioni elettronici	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

PDF	1504 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

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Section 14 16-Bit Timer Pulse Unit (TPU)

Rev. 2.00 Sep. 24, 2008 Page 751 of 1468

REJ09B0412-0200

(2)

Examples of Phase Counting Mode Operation

In phase counting mode, TCNT counts up or down according to the phase difference between two

external clocks. There are four modes, according to the count conditions.

(a)

Phase counting mode 1

Figure 14.26 shows an example of phase counting mode 1 operation, and table 14.34 summarizes

the TCNT up/down-count conditions.

TCNT value

Time

Down-count

Up-count

TCLKA (channels 1 and 5)

TCLKC (channels 2 and 4)

TCLKB (channels 1 and 5)

TCLKD (channels 2 and 4)

Figure 14.26 Example of Phase Counting Mode 1 Operation

Table 14.34 Up/Down-Count Conditions in Phase Counting Mode 1

TCLKA (Channels 1 and 5)

TCLKC (Channels 2 and 4)

TCLKB (Channels 1 and 5)

TCLKD (Channels 2 and 4)

Operation

High level

Low level

High level

Up-count

High level

Low level

High level

Low level

Down-count

[Legend]

: Rising edge

: Falling edge

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