HD64F38602R Datasheet, PDF (260/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 13 Asynchronous Event Counter (AEC)
13.5 Operating States of Asynchronous Event Counter
The operating states of the asynchronous event counter are shown in table 13.3.
Table 13.3 Operating States of Asynchronous Event Counter
Active
Sleep
Oscillation Stabilization Time
Clock High- Medium
Counter Source speed -speed
High- Medium-
Sub-
speed speed Watch active
Sub-
sleep
Standby
to
Standby Active
Subsleep Watch
to
to
Active Active
Remarks
ECH, AEVH, ο
ο
ο
ο
ο
ο
ο
ο
ο
ο
ο
*¹
ECL
AEVL
φ/2, φ/4, ο
ο
ο
ο
×
×
×
×
×
×
×
φ/8
PWM φw/16 ο
ο
ο
ο
ο
ο
ο
×
×
ο
ο
*²
φ/2, φ/4, ο
ο
ο
ο
×
×
×`
×
×
×
×
φ/8,
φ/16,
φ/32,
φ/64
[Legend] ο: Counting enabled
×: Counting disabled (Counter value retained)
Notes: 1. The count-up function is enabled only when IRQAEC/IECPWM = 1.
2. Output is in the high-impedance state during standby mode or the oscillation
stabilization time from standby mode.
Rev. 3.00 May 15, 2007 Page 228 of 516
REJ09B0152-0300