
Section 9 Timers
Rev. 7.00 Mar 10, 2005 page 294 of 652
REJ09B0042-0700
Timer G Operation Modes
Timer G operation modes are shown in table 9.12.
Table 9.12
Timer G Operation Modes
Operation Mode
Reset Active
Sleep
Watch
Subactive Subsleep Standby
Module
Standby
TCG
Input capture
Reset
Functions
*
Functions
*
Functions/
halted
*
Functions/
halted
*
Functions/
halted
*
Halted
Halted
Interval
Reset
Functions
*
Functions
*
Functions/
halted
*
Functions/
halted
*
Functions/
halted
*
Halted
Halted
ICRGF
Reset
Functions
*
Functions
*
Functions/
halted
*
Functions/
halted
*
Functions/
halted
*
Retained Retained
ICRGR
Reset
Functions
*
Functions
*
Functions/
halted
*
Functions/
halted
*
Functions/
halted
*
Retained Retained
TMG
Note:
*
When
φ
w/4 is selected as the TCG internal clock in active mode or sleep mode, since the
system clock and internal clock are mutually asynchronous, synchronization is maintained
by a synchronization circuit. This results in a maximum count cycle error of 1/
φ
(s). When
φ
w/4 is selected as the TCG internal clock in watch mode, TCG and the noise canceler
operate on the
φ
w/4 internal clock without regard to the
φ
SUB
subclock (
φ
w/8,
φ
w/4,
φ
w/2).
Note that when another internal clock is selected, TCG and the noise canceler do not
operate, and input of the input capture input signal does not result in input capture.
To operate the timer G in subactive mode or subsleep mode, select
φ
w/4 as the TCG
internal clock and
φ
w/2 as the subclock
φ
SUB
. Note that when other internal clock is
selected, or when
φ
w/8 or
φ
w/4 is selected as the subclock
φ
SUB
, TCG and the noise
canceler do not operate.
Reset
Functions
Retained
Retained
Functions
Retained
Retained Retained