M30622ECTFP datasheet(93/184 Pages) MITSUBISHI

93 / 184 page

Tentative Specifications REV.A

Mitsubishi microcomputers

M16C / 62T Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Specifications in this manual are tentative and subject to change.

Under

development

Timer A

1 / fi X (2

– 1)

Count source

TAiIN pin

input signal

PWM pulse output

from TAiOUT pin

Condition : Reload register = 000316, when external trigger

(rising edge of TAiIN pin input signal) is selected

Trigger is not generated by this signal

“H”

“L”

Timer Ai interrupt

request bit

“1”

“0”

Cleared to “0” when interrupt request is accepted, or cleared by software

fi : Frequency of count source

(f1, f8, f32, fC32)

Note 1: M30623(80-pin package) does not have I/O pins(TAiIN,TAiOUT) for timer A1 and A2.

Note 2: n = 000016 to FFFE16.

1 / fi X n

Count source (Note1)

TAiIN pin input signal

Underflow signal of

8-bit prescaler (Note2)

PWM pulse output

from TAiOUT pin(Note 3)

“H”

“L”

“1”

“0”

Timer Ai interrupt

request bit

Cleared to “0” when interrupt request is accepted, or cleaerd by software

fi : Frequency of count source

(f1, f8, f32, fC32)

Note 1: The 8-bit prescaler counts the count source.

Note 2: The 8-bit pulse width modulator counts the 8-bit prescaler's underflow signal.

Note 3: M30623(80-pin package) does not have no I/O pins(TAiIN,TAiOUT) for timer A1 and A2.

Note 4: m = 0016 to FE16; n = 0016 to FE16.

Condition : Reload register high-order 8 bits = 0216

Reload register low-order 8 bits = 0216

External trigger (falling edge of TAiIN pin input signal) is selected

1 / fi X (m + 1) X (2 – 1)

1 / fi X (m + 1) X n

1 / fi X (m + 1)

(Note 3)

Figure 1.17.12. Example of how a 16-bit pulse width modulator operates

Figure 1.17.13. Example of how an 8-bit pulse width modulator operates

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