H8SX1663 datasheet(668/1158 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]

Direct Link	http://www.renesas.com

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Section 12 8-Bit Timers (TMR)

Rev.1.00 Jun. 07, 2006 Page 616 of 1102

REJ09B0294-0100

12.3.5

Timer Counter Control Register (TCCR)

TCCR selects the TCNT internal clock source and controls external reset input.



TMRIS

R/W



ICKS1

R/W

ICKS0

R/W

Bit

Bit Name

Initial Value

R/W

Bit

Bit Name

Initial

Value

R/W

Description

7 to 4



All 0

Reserved

These bits are always read as 0. It should not be set to 0.

TMRIS

R/W

Timer Reset Input Select*

Selects an external reset input when the CCLR1 and

CCLR0 bits in TCR are B'11.

0: Cleared at rising edge of the external reset

1: Cleared when the external reset is high



Reserved

This bit is always read as 0. It should not be set to 0.

ICKS1

ICKS0

R/W

Internal Clock Select 1 and 0

These bits in combination with bits CKS2 to CKS0 in TCR

select the internal clock. See table 12.2.

Note:

Available only in unit 0 and unit 1. The write value should always be 0 in unit 2 and unit

H8SX1663 Datasheet(PDF) 668 Page - Renesas Technology Corp

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