HD6417727F100C Renesas Electronics America, HD6417727F100C Datasheet - Page 781

• Manufacturer Part Number: HD6417727F100C
• Description: IC SUPERH MPU ROMLESS 240QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417727F100C

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: FIFO, SCI, SIO, SmartCard, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 104
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 2.05 V
• Data Converters: A/D 6x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 240-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

23.9.4
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.
23.9.5
The endpoint 1 data register (EPDR1) cannot be cleared when DMA transfer for endpoint 1 is
enabled (EP1 DMAE in USBDMA = 1). Cancel DMA transfer before clearing the register.
23.9.6
Note the following when using the transfer request interrupt (TR interrupt) for IN transfer to EP0i,
EP2, or 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 23.15, 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
CPU
Host
USB
when receiving the IN token, but the TR interrupt flag is set only 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.
Assigning Interrupt Sources to EP0
Clearing the FIFO when DMA Transfer Is Enabled
Notes on TR Interrupt
IN token
Determines whether
to return NAK
NAK
Figure 23.15 TR Interrupt Flag Set Timing
Sets TR flag
TR interrupt routine
Clear
TR flag
IN token
Determines whether
to return NAK
Writes
transmit data
Rev.6.00 Mar. 27, 2009 Page 723 of 1036
NAK
Section 23 USB Function Controller
Sets TR flag
(Sets the flag again)
TRG.
PKTE
TR interrupt routine
REJ09B0254-0600
IN token
Transmits data
ACK