M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 232

• Manufacturer Part Number: M3087BFLBGP#U5
• Description: IC M32C/87 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M3087BFLBGP#U5

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IEBus, IrDA, SIO, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 34x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 144-LQFP
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 208 of 587
Figure 16.11
Figure 16.11 shows an example of the triangular wave modulation operation (three-phase mode 0). Figures 16.12
and 16.13 show examples of the triangular wave modulation operation (three-phase mode 1).
INVC1 register = 0
INVC1 register = 1
Timer A4 start trigger signal
Triangular Waveform as a Carrier Wave (Three-phase mode 0)
IR bit in the TB2IC register
Timer A4 one-shot pulse
NOTE:
The above applies under the following conditions:
- INVC0 register: INV01 bit = 0 (ICTB2 counter is incremented by 1 when timer B2 underflows)
- INVC1 register: INV10 bit = 0 (Timer B2 underflow)
- ICTB2 register = 01h (Timer B2 interrupt is generated every timer B2 underflow)
The following shows examples to change PWM output levels.
- Default value of the timer: TA4 = a
- Default value of the registers IDB0 and IDB1: DU0 = 1, DUB0 = 0, DU1 = 0, and DUB1 = 1
They are changed to DU0 = 1, DUB0 = 0, DU1 = 1, and DUB1 = 0 at the sixth timer B2 interrupt.
(Active High)
(Active Low)
INV14 bit in
INV14 bit in
1. Internal signals. See Three-Phase Motor Control Timer Function Block Diagram.
Upper arm (U-phase)
Lower arm (U-phase)
First time TA4 = a
Reload register
TABSR register
TB2S bit in the
output signal
output signal
Triangular Wave Modulation Operation (Three-Phase Mode 0)
TA4 register
Timer B2
U-phase
U-phase
U-phase
U-phase
INV02 bit = 1 (Three-phase motor control timer function used)
INV03 bit = 1 (Three-phase motor control timer output enabled)
INV06 bit = 0 (Triangular wave modulation mode)
INV11 bit = 0 (Timers A11, A21, A41 not used (Three-phase mode 0))
INV15 bit = 0 (Dead time enabled)
INV16 bit = 1 (Rising edge of the three-phase output shift register (U-, V-, W-phase))
(1)
(1)
(1)
(1)
(1)
Carrier wave
Signal wave
2
, second time TA4 = a
1
a
(The TA4 register is rewritten every time the timer B2 interrupt occurs.)
a
1
1
DUB0 = 0
DU0 = 1
a
1
Values are transferred to the three-phase output shift register from registers IDB0 and IDB1
3
, third time TA4 = a
DUB1 = 1
DU1 = 0
a
a
2
2
a
2
a
a
3
3
Rewrite registers IDB0 and IDB1
Set to 0 by an interrupt request acknowledgement or by a program
4
a
, fourth time TA4 = a
3
a
a
4
4
a
Dead time
4
16. Three-Phase Motor Control Timer Function
a
a
Dead time
5
5
5
, fifth time TA4 = a
a
5
a
a
6
6
a
6
a
a
7
7
6
DUB0 = 0
DU0 = 1
a
7
a
a
8
8
a
8
DUB1 = 0
DU1 = 1
a
a
9
9