M16CSLASH29 datasheet(151/499 Pages) RENESAS

151 / 499 page

12. Timer (Three-phase Motor Control Timer Function)

page 127

Figure 12.26 INVC0 Register

Three-phase PWM Control Register 0 (1)

Symbol

Address

After Reset

INVC0

034816

0016

b7 b6 b5 b4 b3 b2 b1 b0

INV00

Bit Symbol

Bit Name

Function

INV01

INV02

Mode select bit(4)

INV04

INV07

Software trigger select bit

INV06

Modulation mode select bit(8)

INV05

INV03

Output control bit(6)

Item

Mode

Timing at which transferred from registers

IDB0 to IDB1 to three-phase output shift

Timing at which dead time timer trigger is

generated when INV16 bit is 0

INV13 bit

INV06=0

Triangular wave modulation mode

Transferred only once synchronously

with the transfer trigger after writing to

registers IDB0 to IDB1

Synchronous with the falling edge of

timer A1, A2, or A4 one-shot pulse

Effective when INV11 is set to 1 and

INV06 is set to 0

INV06=1

Sawtooth wave modulation mode

Transferred every transfer trigger

Synchronous with the transfer

trigger and the falling edge of timer

A1, A2, or A4 one-shot pulse

No effect

NOTES:

1. Write to this register after setting the PRC1 bit in the PRCR register to 1 (write enable). Note also that bits INV00 to INV02,

bits INV04 and INV06 can only be rewritten when timers A1, A2, A4 and B2 are idle.

2. If this bit needs to be set to 1, set any value in the ICTB2 register before writing to it.

3. Effective when the INV11 bit in the INV1 register is 1 (three-phase mode 1). If INV11 is set to 0 (three-phase mode 0), the

ICTB2 counter is incremented by 1 each time the timer B2 underflows, regardless of whether the INV00 and INV01 bits are

set. When setting the INV01 bit to 1, the first interrupt is generated when the timer B2 underflows n-1 times, if n is the value

set in the ICTB2 counter. Subsequent interrupts are generated every n times the timer B2 underflow.

4. Setting the INV02 bit to 1 activates the dead time timer, U/V/W-phase output control circuits and ICTB2 counter.

5. When the INV02 bit is set to 1 and the INV03 bit is set to 0, U, U, V, V, W, W pins, including pins shared with other output

functions, enter a high-impedance state. When INV03 is set to 1, U/V/W corresponding pins generate the three-phase PWM

output.

6. The INV03 bit is set to 0 in the following cases:

• When reset

• When positive and negative go active (INV05 = 1) simultaneously while INV04 bit is 1

• When set to 0 by program

• When input on the SD pin changes state from “H” to “L” regardless of the value of the INVCR1 bit. (The INV03 bit cannot be

set to 1 when SD input is “L”.) INV03 is set to 0 when both bits INV05 and INV04 are set to 1.

Effective interrupt output

polarity select bit(3)

Effective interrupt output

specification bit(2, 3)

0: ICTB2 counter incremented by 1 at a

timer B2 underflow

1: Selected by INV00 bit

0: Three-phase motor control timer

function unused

1: Three-phase motor control timer

function (5)

0: Three-phase motor control timer output

disabled (5)

1: Three-phase motor control timer output

enabled

Positive and negative

phases concurrent output

disable bit

Positive and negative

phases concurrent output

detect flag

0: Not detected yet

1: Already detected (7)

0: Simultaneous active output enabled

1: Simultaneous active output disabled

0: Triangular wave modulation mode

1: Sawtooth wave modulation mode (9)

Setting this bit to 1 generates a transfer

trigger. If the INV06 bit is 1, a trigger for the

dead time timer is also generated. The

value of this bit when read is 0

0: ICTB2 counter is incremented by 1 on

the rising edge of timer A1 reload control

signal

1: ICTB2 counter is incremented by 1 on

the falling edge of timer A1 reload control

signal

Transfer trigger: Timer B2 underflow, write to the INV07 bit or write to the TB2 register when the INV10 bit is set to 1.

9: If the INV06 bit is set to 1, set the INV11 bit to 0 (three-phase mode 0) and set the PWCON bit to 0 (timer B2 reloaded by a

timer B2 underflow)

10. When the PFCi (i = 0 to 5) bit in the PFCR register is set to 1 (three-phase PWM output), individual pins are enabled to output.

M16C/29 датащи(PDF) 151 Page - Renesas Technology Corp

M16C/29 датащи(HTML) 151 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL