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2 register descriptions, 1 compare match timer start register (cmstr) – Renesas SH7641 User Manual

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Section 17 Compare Match Timer (CMT)

Rev. 4.00 Sep. 14, 2005 Page 510 of 982

REJ09B0023-0400

17.2 Register

Descriptions

The CMT has the following registers. Refer the section 24, List of Registers and access size for
these registers.

• Compare match timer start register_0 (CMSTR_0)
• Compare match timer control/status register_0 (CMCSR_0)
• Compare match counter_0 (CMCNT_0)
• Compare match timer constant register_0 (CMCOR_0)
• Compare match timer start register_1 (CMSTR_1)
• Compare match timer control/status register_1 (CMCSR_1)
• Compare match counter_1 (CMCNT_1)
• Compare match timer constant register_1 (CMCOR_1)

17.2.1 Compare

Match

Timer Start Register (CMSTR)

CMSTR is a 16-bit register that selects whether compare match counter (CMCNT) operates or is
stopped.

CMSTR is initialized to H'0000 by a power on reset, but is not initialized in standby mode.

Bit Bit

Name

Initial
value R/W

Description

15 to 1

 All

0

R

Reserved

These bits are always read as 0. The write value should
always be 0.

0 STR 0 R/W

Count

Start

Specifies whether compare match counter operates or
is stopped.

0: CMCNT count is stopped

1: CMCNT count is started

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