H8SSLASH2225 datasheet(520/1071 Pages) RENESAS

部件名	H8S/2225

功能描述	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	1071 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

标志

520 / 1071 page

Section 11 16-Bit Timer Pulse Unit (TPU)

Rev. 5.00 Aug 08, 2006 page 434 of 982

REJ09B0054-0500

Overlap

Phase

diffe-

rence

Phase

diffe-

rence

Overlap

TCLKA

(TCLKC)

TCLKB

(TCLKD)

Pulse width

Notes: Phase difference and overlap:

Pulse width:

1.5 states or more

2.5 states or more

Figure 11.45 Phase Difference, Overlap, and Pulse Width in Phase Counting Mode

11.10.3 Caution on Cycle Setting

When counter clearing by compare match is set, TCNT is cleared in the final state in which it

matches the TGR value (the point at which the count value matched by TCNT is updated).

Consequently, the actual counter frequency is given by the following formula:

f =

(N + 1)

Where f: Counter frequency

φ: Operating frequency

N: TGR set value

11.10.4 Contention between TCNT Write and Clear Operations

If the counter clearing signal is generated in the T2 state of a TCNT write cycle, TCNT clearing

takes precedence and the TCNT write is not performed. Figure 11.46 shows the timing in this

case.

H8S/2225 数据表(PDF) 520 Page - Renesas Technology Corp

H8S/2225 数据表(HTML) 520 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载