H8SLASH3021 datasheet(240/712 Pages) RENESAS

Part #	H8/3021

Description	16-Bit Single-Chip Microcomputer

PDF	712 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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240 / 712 page

8. 16-Bit Integrated Timer Unit (ITU)

Rev.2.00 Mar. 22, 2007 Page 216 of 684

REJ09B0352-0200

Bits 2 to 0—Timer Prescaler 2 to 0 (TPSC2 to TPSC0): These bits select the counter clock

source.

Bit 2

TPSC2

Bit 1

TPSC1

Bit 0

TPSC0

Function

Internal clock:

(Initial value)

Internal clock:

φ/2

Internal clock:

φ/4

Internal clock:

φ/8

External clock A: TCLKA input

External clock B: TCLKB input

External clock C: TCLKC input

External clock D: TCLKD input

When bit TPSC2 is cleared to 0 an internal clock source is selected, and the timer counts only

falling edges. When bit TPSC2 is set to 1 an external clock source is selected, and the timer counts

the edge or edges selected by bits CKEG1 and CKEG0.

When channel 2 is set to phase counting mode (MDF = 1 in TMDR), the settings of bits TPSC2 to

TPSC0 in TCR2 are ignored. Phase counting takes precedence.

H8/3021 Datasheet(PDF) 240 Page - Renesas Technology Corp