R4F24569NVFQV Renesas Electronics America, R4F24569NVFQV Datasheet - Page 1048

• Manufacturer Part Number: R4F24569NVFQV
• Description: MCU 256KB FLASH 64K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24569NVFQV

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 16 USB Function Module (USB)
16.10.4 Assigning Interrupt Sources to EP0
The EP0-related interrupt sources indicated by the interrupt source bits (bits 0 to 3) in IFR0 must
be assigned to the same interrupt signal with ISR0. The other interrupt sources have no limitations.
16.10.5 Clearing the FIFO When DMA Transfer is Enabled
EPDR1 cannot be cleared when DMA transfer for endpoint 1 is enabled (EP1DMAE in DMAR =
1). Cancel DMA transfer before clearing the register.
16.10.6 Notes on TR Interrupt
Note the following when using the transfer request interrupt (TR interrupt) for IN transfer to EP0i,
EP2, and EP3.
The TR interrupt flag is set if the FIFO for the target EP has no data when the IN token is sent
from the USB host. However, at the timing shown in figure 16.25, multiple TR interrupts occur
successively. Take appropriate measures against malfunction in such a case.
Note: This module determines whether to return NAK if the FIFO of the target EP has no data
Page 1018 of 1392
CPU
Host
USB
when receiving the IN token, but the TR interrupt flag is set after a NAK handshake is
sent. If the next IN token is sent before PKTE of TRG is written to, the TR interrupt flag is
set again.
IN token
Determines whether
to return NAK.
Figure 16.25 TR Interrupt Flag Set Timing
NAK
Sets TR flag
TR interrupt routine
Clear
TR flag
IN token
Determines whether
to return NAK.
Writes
transmit data
NAK
TRG.
PKTE
Sets TR flag
(Sets the flag again)
H8S/2456, H8S/2456R, H8S/2454 Group
TR interrupt routine
REJ09B0467-0350 Rev. 3.50
IN token
Transmits data
ACK
Jul 07, 2010