SH7014 datasheet(257/754 Pages) RENESAS

257 / 754 page

10. Multifunction Timer Pulse Unit (MTU)

Rev.5.00 Sep. 27, 2007 Page 223 of 716

REJ09B0398-0500

Bits 2 to 0

⎯Timer Synchronization 2 to 0 (SYNC2 to SYNC0): Selects operation independent

of, or synchronized to, other channels. Synchronous operation allows synchronous clears due to

multiple TCNT synchronous presets and other channel counter clears. A minimum of two

channels must have SYNC bits set to 1 for synchronous operation. For synchronization clearing, it

is necessary to set the TCNT counter clear sources (the CCLR2 to CCLR0 bits of the TCR

correspondence are indicated in the tables below.

Counter Start

Channel

SYNC2

Channel 2 (TCNT2)

SYNC1

Channel 1 (TCNT1)

SYNC0

Channel 0 (TCNT0)

Bit n

SYNCn

Description

Timer counter (TCNTn) independent operation

(initial value)

(TCNTn preset/clear unrelated to other channels)

Timer counter synchronous operation*

TCNTn synchronous preset/ synchronous clear*

2 possible

Notes: n = 2 to 0.

1. Minimum of two channel SYNC bits must be set to 1 for synchronous operation.

2. TCNT counter clear sources (CCLR2 to CCLR0 bits of the TCR register) must be set in

addition to the SYNC bit in order to have clear synchronization.

Bits 7 to 3

⎯Reserved: These bits always read as 0. The write value should always be 0.

SH7014 Datasheet(PDF) 257 Page - Renesas Technology Corp