M32CSLASH86 datasheet(201/505 Pages) RENESAS

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16. Three-Phase Motor Control Timer Functions

)

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Timer B2 Interrupt Generation Frequency Set Counter(1, 2, 3)

Symbol

Address

After Reset

ICTB2

030D16

Indeterminate

Function

Setting Range

1 to 15

Nothing is assigned. When write, set to "0".

When the INV01 bit is set to "0" (the ICTB2 counter

increments whenever the timer B2 counter underflows) and

the setting value is n, the timer B2 interrupt is generated

every nth time timer B2 counter underflow occurs.

When the INV01 bit is set to "1" (the INV00 bit selects

count timing of the ICTB2 counter) and setting value is

n, the timer B2 interrupt is generated every nth time

timer B2 counter underflow meeting the condition

selected in the INV00 bit occurs.

NOTES:

1. Use the MOV instruction to set the ICTB2 register.

2. If the INV01 bit in the INVC0 register is set to "1", set the ICTB2 register in the TABSR register when

the TB2S bit is set to "0" (timer B2 counter stopped).

If the INV01 bit is set to "0" and the TB2S bit to "1" (timer B2 counter start), do not set the ICTB2

3. If the INV00 bit in the INVC0 register is set to "1", the first interrupt is generated when the timer B2

counter underflows n-1 times, n being the value set in the ICTB2 counter. Subsequent interrupts are

generated every n times the timer B2 counter underflows.

Timer Ai, Ai-1 Register (i=1, 2, 4)(1, 2, 3, 4, 5, 6)

Symbol

Address

After Reset

TA1, TA2, TA4

034916 - 034816, 034B16 - 034A16, 034F16 - 034E16 Indeterminate

TA11, TA21, TA41

030316 - 030216, 030516 - 030416, 030716 - 030616

Indeterminate

Function

Setting Range

000016 to FFFF16

b15

If setting value is n, the timer stops when the nth count

source is counted after a start trigger is generated.

Positive phase changes to negative phase, and vice

versa, when the timers A1, A2 and A4 stop.

NOTES:

1. Use a 16-bit data for read and write.

2. If the TAi or TAi1 register is set to "000016", no counter starts and no timer Ai interrupt is generated.

3. Use the MOV instruction to set the TAi and TAi1 registers.

4. When the INV15 bit in the INVC1 register is set to "0" (dead timer enabled), phase switches from an

inactive level to an active level when the dead time timer stops.

5. When the INV11 bit in the INVC1 register is set to "0" (three-phase mode 0), the value of the TAi

When the INV11 bit is set to "1" (three-phase mode 1), the value of the TAi1 register is first transferred

to the reload register by a timer Ai start trigger. Then, the value of the TAi register is transferred by the

next trigger. The values of the TAi1 and TAi registers are transferred alternately to the reload register

with every timer Ai start trigger.

6. Do not write to these registers when the timer B2 counter underflows.

Timer B2 Special Mode Register

Symbol

Address

After Reset

TB2SC

035E16

XXXX XXX02

Bit Name

Function

Bit

Symbol

PWCON

Timer B2 Reload Timing

Switching Bit(1)

0 : Timer B2 counter underflows

1 : Timer A output in odd-number

times

Nothing is assigned. When write, set to "0".

When read, its content is "0."

NOTES:

1. Set the PWCON bit to "0" when setting the INV11 bit to "0" (three-phase mode 0) or the INV06 bit to

"1" (sawtooth wave modulation mode).

Figure 16.5 ICTB2 Register, TA1, TA2, TA4, TA11, TA21 and TA41 Registers, TB2SC Register

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