7641_06 Datasheet, PDF (76/385 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

7641 Group
HARDWARE
FUNCTIONAL DESCRIPTION
[USB Endpoint FIFO Mode Selection Register] USBFIFOMR
This register determines IN/OUT FIFO size mode for endpoint 1 or
endpoint 2. This register is invalid when using endpoint 0, 3, or 4.
b7
0000
b0
USB endpoint FIFO mode register (address 005F16)
USBFIFOMR
FIFO size selection bit (Note)
For endpoint 1
b3b2b1b0
X 0 0 0: IN 512-byte, OUT 800-byte
X 0 0 1: IN 1024-byte, OUT 1024-byte
X 0 1 0: IN 0-byte, OUT 2048-byte
X 0 1 1: IN 2048-byte, OUT 0-byte
X 1 0 0: IN 768-byte, OUT 1280-byte
X 1 0 1: IN 880-byte, OUT 1168-byte
For endpoint 2
0 X X X : IN 32-byte, OUT 32-byte
1 X X X : IN 128-byte, OUT 128-byte
Reserved bit (“0” at read/write)
Note: The value set into “x” is invalid.
Fig. 53 Structure of USB endpoint FIFO mode register
Rev.2.00 Aug 28, 2006 page 59 of 113
REJ09B0336-0200