UPD70F3771GF-GAT-AX Renesas Electronics America, UPD70F3771GF-GAT-AX Datasheet - Page 611

• Manufacturer Part Number: UPD70F3771GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-H 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Hr

Specifications of UPD70F3771GF-GAT-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 48MHz
• Connectivity: CAN, CSI, EBI/EMI, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3-H, V850ES/JH3-H
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
(1) Anytime rewrite mode
Operating clock
Note After the register (TAB1CCR0, TAB1CCR2, TAB1CCR3, TAB1OPT1, TAA4CCR0, or TAA4CCR1) has
Rewriting during period <1> (rewriting during counting up)
Rewriting during period <2> (rewriting during counting down)
This mode is set by setting the TAB1OPT0.TAB1CMS bit to 1. The setting of the TAB1OPT2.TAB1RDE bit is
ignored.
In this mode, the value written to each register with a transfer function is immediately transferred to an internal
buffer register and compared with the value of the counter. If a register with transfer function is rewritten in this
mode after the count value of the 16-bit counter matches the value of the TAB1CCRm register, the rewritten value
is not reflected because the next match is ignored after the first match has occurred. If the register is rewritten
during counting up, the new register value becomes valid after the counter has started counting down.
(a) Rewriting TAB1CCR0 register
If the newly rewritten value is greater than the value of the 16-bit counter, there is no problem because it will
match the value of the 16-bit counter. If the new value is less than the value of the 16-bit counter, it will not
match the value of the counter. As a result, the 16-bit counter overflows and continues counting up from
0000H until it matches the register value again, and the correct PWM waveform is not output.
A match with the value of the 16-bit counter is ignored during counting down. Therefore, the rewritten period
value is reflected as the match point starting from counting up in the next cycle.
CCR0 buffer
TAB1CCR0
Even if the TAB1CCR0 register is rewritten in the anytime rewrite mode, the new value may not be reflected in
some cases.
register
register
been written, the written value is transferred to an internal buffer register after four clocks of the operating
clock. However, the value of the TAB1CCR1 register is transferred after 5 clocks.
(f
XX
/2)
b
b
counter
16-bit
Figure 11-22. Example of Rewriting TAB1CCR0 Register
Figure 11-21. Timing of Reflecting Rewritten Value
a
<1>
<2>
CHAPTER 11 MOTOR CONTROL FUNCTION
<1>
Note
a
<2>
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