UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 575

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

Specifications of UPD70F3451GC-UBT-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CSI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 10x12b, 4x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(internal signal)
(internal signal)
(5) Dead-time control in case of incorrect setting
TOBnm signal
TOBnm signal
Remark
Dead-time
Dead-time
counter m
pin output
pin output
counter m
pin output
pin output
TOBnTm
TOBnBm
TOBnBm
TOBnTm
Usually, the TOBnm (internal signal) output of TABn changes only once during dead-time counting, only in the
vicinity of 0% and 100% output. This section shows an example where the TABnCCR0 register (carrier cycle)
and TABnDTC register (dead-time value) are incorrectly set. If these registers are incorrectly set, the TOBnm
(internal signal) output of TABn changes more than once during dead-time counting. The following flowchart
shows the 6-phase PWM output waveform in this case.
(a) When TABnOPT2.TABnDTM bit = 0, TABnCCR0 register = 0006H, TABnDTC register = 000FH,
(b) When TABnOPT2.TABnDTM bit = 1, TABnCCR0 register = 0006H, TABnDTC register = 000FH,
counter
counter
16-bit
16-bit
n = 0, 1, m = 1 to 3
000H
000H
001H 002H 003H 004H 005H 006H 007H 008H 009H 00AH 009H 008H 007H 006H 005H 004H 003H 002H 001H
Figure 10-14. Operation of Dead-Time Counter m (2)
001H 002H 003H 004H 005H 006H 001H 002H 003H 004H 005H 006H 007H 008H 009H 00AH 00BH 00CH 00DH 00EH 00FH
CHAPTER 10 MOTOR CONTROL FUNCTION
TABnCCRm register = 0004H
TABnCCRm register = 0002H
User’s Manual U18279EJ3V0UD
Counter cleared
Starts counting
down.
Output does not change
and dead-time counter m
continues counting down.
Counter is not cleared but continues counting.
000H
001H 002H 003H 004H 003H 002H 001H
000H
001H
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