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 Reset Functions Retained Retained Functions Retained Retained Retained
Note: * When φw/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
φw/4 is selected as the TCG internal clock in watch mode, TCG and the noise canceler
operate on the φw/4 internal clock without regard to the φ
SUB
subclock (φw/8, φw/4, φw/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 φw/4 as the TCG
internal clock and φw/2 as the subclock φ
SUB
. Note that when other internal clock is
selected, or when φw/8 or φw/4 is selected as the subclock φ
SUB
, TCG and the noise
canceler do not operate.
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