M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 231

• 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 207 of 587
16.1
Table 16.3
a
a
b
a
j: the number of interrupts
m: Value of the TB2 register
INV06 bit
INV11 bit
Bits INV01 and
INV00
PWCON bit
ICTB2 register
Carrier wave cycle
Upper arm active
level output width
INV13 bit
Timer B2 interrupt
generation timing
Timer B2 reload
timing
Transfer timing from
IDBp register to
three-phase output
shift register
Dead time timer start
timing
2k-1
2k
k
k
In triangular wave modulation mode, one cycle of carrier waveform consists of two timer B2 underflow cycles.
A timer Ai one-shot pulse (i = 1, 2, and 4) is generated by using a timer B2 underflow signal as a trigger. Two of
the timer Ai one-shot pulses are used to output one cycle of the PWM waveform. Table 16.3 lists specifications and
settings of triangular wave modulation mode.
Triangular wave modulation mode has two operation modes, three-phase mode 0 and three-phase mode 1.
TAi register is used in three-phase mode 0. Every time a timer B2 underflow interrupt occurs, the one-shot pulse
width is set in the TAi register.
Registers TAi and TAi1 are used in three-phase mode 1. Two different widths of the one-shot pulse can be set in
these registers. If a setting value of the ICTB2 register is n, a timer B2 underflow interrupt is generated every n-th
or every 2n-th timer B2 underflow to set values in registers TAi and TAi1.
: Value set to the TAi1 register at k-th time.
: Value set to the TAi register at k-th time.
: Value set to the TAi register at even-numbered time.
: Value set to the TAi register at odd-numbered time.
Triangular Wave Modulation Mode
Item
Specifications and Settings of Triangular Wave Modulation Mode
Timer B2 underflow
Timer B2 underflow
When a value is written to the IDBp register (p = 0, 1), the value is transferred only once by the
first transfer trigger.
• At the falling edge of the one-shot pulse of timer A1, A2 and A4 (INV16 = 0)
• At the rising edge of the three-phase output shift register (INV16 = 1)
Three-Phase Mode 0
f1
1
f1
2
×(m+1 - a
00b or 01b
× (m + 1)
0 or 1
0
0
0
1
2k-1
+a
2k
)
Indicates the timer A1 reload control signal state.
Every n-th timer B2
underflow
• Timer B2 underflow (PWCON = 0)
• Timer B2 underflow at the rising edge of the timer A1 reload control
signal (PWCON = 1)
00b
16. Three-Phase Motor Control Timer Function
Every 2n-th timer B2 underflow
Every odd-numbered
(2n × j - 1) timer B2
underflow
Three-Phase Mode 1
f1
1
× (m+1 - b
f1
2
0 or 1
× (m+1)
10b
0
1
n
k
+a
k
)
Every even-
numbered (2n × j)
timer B2 underflow
11b