UPD70F3765GF-GAT-AX Renesas Electronics America, UPD70F3765GF-GAT-AX Datasheet - Page 1239

• Manufacturer Part Number: UPD70F3765GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-H 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Hr

Specifications of UPD70F3765GF-GAT-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 48MHz
• Connectivity: 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: -

<R>
V850ES/JG3-H, V850ES/JH3-H
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
(6) DMA trigger factor registers 0 to 3 (DTFR0 to DTFR3)
Note Do not set the DFn bit to 1 by software. Write 0 to this bit to clear a DMA transfer request if an interrupt
Cautions 1. Set the IFCn5 to IFCn0 bits at the following timing when DMA transfer is disabled
Remark
The DTFR0 to DTFR3 registers are 8-bit registers that control the DMA transfer start trigger via interrupt request
signals from on-chip peripheral I/O.
The interrupt request signals set by these registers serve as DMA transfer start factors.
These registers can be read or written in 8-bit units. However, DFn bit can be read or written in 1-bit units.
Reset sets these registers to 00H.
that is specified as the DMA transfer start factor occurs while DMA transfer is disabled.
2. An interrupt request that is generated in the standby mode (IDEL1, IDLE2, STOP, or sub-
3. If a DMA start factor is selected by the IFCn5 to IFCn0 bits, the DFn bit is set to 1 when an
For the IFCn5 to IFCn0 bits, see Table 22-1 DMA Start Factors.
4. Be sure to follow the steps below when changing the DTFRn register settings.
(n = 0 to 3)
(DCHCn.Enn bit = 0).
IDLE mode) does not start the DMA transfer cycle (nor is the DFn bit set to 1).
interrupt occurs from the selected on-chip peripheral I/O, regardless of whether the DMA
transfer is enabled or disabled.
immediately started.
• When the values to be set to bits IFCn5 to IFCn0 are not set to bits IFCm5 to IFCm0 of
• When the values to be set to bits IFCn5 to IFCn0 are set to bits IFCm5 to IFCm0 of
• Period from after reset to start of first DMA transfer
• Period from after channel initialization by DCHCn.INITn bit to start of DMA transfer
• Period from after completion of DMA transfer (DCHCn.TCn bit = 1) to start of the next
another channel (n = 0 to 3, m = 0 to 3, n ≠ m)
<1> Stop the DMAn operation of the channel to be rewritten (DCHCn.Enn bit = 0).
<2> Change the DTFRn register settings. (Be sure to set DFn bit = 0 and change the
<3> Confirm that DFn bit = 0. (Stop the interrupt generation source operation
<4> Enable the DMAn operation (Enn bit = 1).
another channel (n = 0 to 3, m = 0 to 3, n ≠ m)
<1> Stop the DMAn operation of the channel to be rewritten (DCHCn.Enn bit = 0).
<2> Stop the DMAm operation of the channel where the same values are set to bits
<3> Change the DTFRn register settings. (Be sure to set DFn bit = 0 and change the
<4> Confirm that bits DFn and DFm = 0. (Stop the interrupt generation source operation
<5> Enable the DMAn operation (bits Enn and Emm = 1).
DMA transfer
DTFRn
After reset:
settings in the 8-bit manipulation.)
beforehand.)
IFCm5 to IFCm0 as the values to be used to rewrite bits IFCn5 to IFCn0
(DCHCm.Emm bit = 0).
settings in the 8-bit manipulation.)
beforehand.)
DFn
00H
DFn
<7>
0
1
Note
No DMA transfer request
DMA transfer request
R/W
0
6
Address:
IFCn5
5
CHAPTER 22 DMA FUNCTION (DMA CONTROLLER)
DTFR0 FFFFF810H, DTFR1 FFFFF812H,
DTFR2 FFFFF814H, DTFR3 FFFFF816H
DMA transfer request status flag
If DMA is enabled in this status, DMA transfer is
IFCn4
4
IFCn3
3
IFCn2
2
IFCn1
1
IFCn0
0
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