m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 105

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

to A9 operate independently of one other.
has the same functions.
TIMER A
7.1 Overview
7.1 Overview
Timer A consists of ten counters, Timers A0 to A9, each equipped with a 16-bit reload function. Timers A0
Timer Ai (i = 0 to 9) has four operating modes listed below. Except for the event counter mode, timer Ai
Table 7.1.1 lists the functions of timer Ai.
Table 7.1.1 Functions of timer Ai
Note: Normal processing for TA2, TA3, TA7, TA8; and quadruple processing for TA4, TA9
7-2
Timer mode
Event counter mode
One-shot pulse mode
Pulse width modulation (PWM) mode
(1) Timer mode
(2) Event counter mode
(3) One-shot pulse mode
(4) Pulse width modulation (PWM) mode
In this mode, the timer counts an internally generated count source. Following functions can be used
in this mode:
• Gate function
• Pulse output function
In this mode, the timer counts an external signal. Following functions can be used in this mode:
• Pulse output function
• Two-phase pulse signal processing function (Timers A2 to A4, A7 to A9)
In this mode, the timer outputs a pulse which has an arbitrary width once.
In this mode, the timer outputs pulses which have an arbitrary width in succession. In this mode, the
timer serves as one of the following pulse width modulators:
• 16-bit pulse width modulator
• 8-bit pulse width modulator
Functions of timers
Timer
Gate function
Pulse output function
Pulse output function
Two-phase pulse signal processing function
7905 Group User’s Manual Rev.1.0
TA0 TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 TA9
—
Timer Ai (i = 0 to 9)
(Note)
—
(Note)