HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 608

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

20.3.14 EP6 Data Register (EPDR6)
EPDR6 is a 64-byte 8-bit receive FIFO buffer for endpoint 6. EPDR6 has a dual-buffer
configuration, and has a capacity of twice the maximum packet size. The number of receive byte is
displayed in the EPSZ6 receive data size register. The buffer on read side can be received again by
writing EP6RDFN in TRG to 1 after data is read. The receive data of this FIFO buffer can be
transferred by DMA. This FIFO buffer can be initialized by means of EP6CLR in FCLR.
20.3.15 EP0o Receive Data Size Register (EPSZ0o)
EPSZ0o is a receive data size resister for endpoint 0o. EPSZ0o indicates the number of bytes
received from the host.
20.3.16 EP2o Receive Data Size Register (EPSZ2o)
EPSZ2o is a receive data size resister for endpoint 2o. EPSZ2o indicates the number of bytes
received from the host. FIFO of endpoint 2o has a dual-buffer configuration. The size of the
received data indicated by this register is the size of the currently selected side (can be read by
CPU).
20.3.17 EP3o Receive Data Size Register (EPSZ3o)
EPSZ3o is a receive data size resister for endpoint 3. EPSZ3o indicates the number of bytes
received from the host. FIFO of endpoint 3o has a dual-buffer configuration. The size of the
received data indicated by this register is the size of the currently selected side (can be read by
CPU).
Rev. 1.00, 02/04, page 570 of 804
Bit
7 to 0
Bit
7 to 0
Bit
7 to 0
Bit
7 to 0
Bit Name
D7 to D0
Bit Name
—
Bit Name
—
Bit Name
—
All 0
All 0
All 0
Initial Value
Undefined
Initial Value
Initial Value
Initial Value
R/W
R
R/W
R
R/W
R
R/W
R
Description
Data register for endpoint 6 transfer
Description
Number of receive data for endpoint 0o
Description
Number of received bytes for endpoint 2o
Description
Number of received bytes for endpoint 3o