UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 778

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 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: -

776
<1> When a DMA transfer request is generated, the corresponding DF bit is set (1).
<2> A new DMA transfer request is ignored because the preceding transfer is not complete.
Notes 1. Interrupt from on-chip peripheral I/O, or software trigger (DCHCn.STGn bit)
Remark
Mode of processing
DMAn transfer
2. A new DMA request for the same channel is ignored between when the transfer request is generated
System clock
DMA transfer
request
and the end processing.
In the case of transfer between external memory spaces (multiplexed bus, no wait)
DFn bit
Note 1
Figure 20-6. Period in Which DMA Transfer Request Is Ignored (1)
CPU processing
<1>
CHAPTER 20 DMA FUNCTION (DMA CONTROLLER)
A new DMA transfer request is not acknowledged
Preparation
for transfer
User’s Manual U18953EJ5V0UD
Read cycle
<2>
DMA0 processing
Note 2
Idle
Write cycle
<2>
Note 2
processing
End
CPU processing
<2>
Note 2
Transfer request
generated after this
can be acknowledged