M30845FJGP#U3 Renesas Electronics America, M30845FJGP#U3 Datasheet - Page 214

• Manufacturer Part Number: M30845FJGP#U3
• Description: IC M32C MCU FLASH 512K 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M30845FJGP#U3

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 34x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M
R
R
e
E
3
. v
J
2
Figure 16.8 Triangular Wave Modulation Operation
0
C
1
9
0 .
8 /
B
The three-phase motor control timer function is available by setting the INV02 bit in the INVC0 register to
"1". The timer B2 is used for carrier wave control and the timers A1, A2, A4 for three-phase PWM output
(U, U, V, V, W, W) control. An exclusive dead time timer controls dead time. Figure 16.8 shows an
example of the triangular modulation waveform. Figure 16.9 shows an example of the sawtooth modula-
tion waveform.
INV14 = 1
("H" active)
NOTES:
Triangular waveform as a Carrier Wave
INV00, INV01: Bits in INVC0 register
INV11, INV14: Bits in INVC1 register
INV14 = 0
("L" active)
The above applies to INVC0 = 00XX11XX
Timer A1
Reload Control Signal
Examples of PWM output change are
(a) When INV11=1 (three-phase mode 1)
0
1
4
0
Timer A4
Start Trigger Signal
1. Internal signals. See Figure 16.1.
2. Applies only when the INV11 bit is set to "1" (three-phase mode).
- INV01=0 and ICTB2=2
- Default value of the timer: TA41=m, TA4=m
- Default value of the IDB0 and IDB1 registers
3
G
J
__
generated with every second timer B2 underflow) or
INV01=1, INV00=1and ICTB2=1
generated on the falling edge of the timer A reload control
signal)
The TA4 and TA41 registers are changed whenever the
timer B2 interrupt is generated.
They are changed to DU0=1, DUB0=0, DU1=1, DUB1=0
by the third timer B2 interrupt.
6
u
o r
Reload Register
Timer A4
One-Shot Pulse
First time: TA41=n, TA4:=n.
Second time: TA41=p, TA4=p.
DU0=1, DUB0=0, DU1=0, DUB1=1
0 -
. l
TB2S Bit in
TABSR Register
TA4-1 Register
u
U-Phase
Output Signal
U-Phase
Output Signal
0
1
TA4 Register
p
, 7
0
1
__
(
Timer B2
2
M
U-Phase
U-Phase
U-Phase
0
U-Phase
3
0
2
5
Triangular Wave
C
___
8 /
Signal Wave
(1)
(1)
(2)
(2)
(2)
(1)
(1)
(1)
Page 191
, 4
16
M
3
(The timer B2 interrupt is
2
m
C
m
m
f o
8 /
16
4
4
(The timer B2 interrupt is
) T
9
5
2
m
and INVC1 = 010XXXX0
m
m
n
n
n
n
(b) When INV11=0 (three-phase mode 0)
2
n
(X varies depending on each system.)
- INV01=0, ICTB2=1
- Default value of the timer: TA4=m
- Default value of the IDB0 and IDB1 registers:
whenever the timer B2 underflows)
The TA4 register is changed whenever the timer B2
interrupt is generated.
They are changed to DU0=1, DUB0=0, DU1=1, DUB1=0 by
the sixth timer B2 interrupt.
First time: TA4=m. Second time: TA4=n.
Third time: TA4=n. Fourth time: TA=p.
Fifth time: TA4=p.
DU0=1, DUB0=0, DU1=0, DUB1=1
Dead time
n
16. Three-Phase Motor Control Timer Functions
n
Dead time
p
p
p
16
Rewrite the IDB0 and IDB1 registers
p
p
(The timer B2 interrupt is generated
q
q
p
q
q
Transfer the values
to the three-phase
shift register
q
q
r
r
r