Fujitsu F2MC-16LX Hardware Manual page 293

[bit 15] EPEN: End Point 1 to 5 permission bit
The end point is made effective. Setting the EPEN bit allows it to be configures by the host as an end
point for use in the USB Function. TYPE, DIR, and PKS of the EP1 to EP5 control registers become
valid for configuration information.
EPEN
0
1
[bit 14, bit13] TYPE: End point forwarding type selection bit
The forwarding type supported by the end point is specified.
TYPE
00
01
10
11
[bit 12] DIR: End point forwarding direction selection bit
It specifies a transfer direction that the end point supports.
DIR
0
1
[bit 11] DMAE: DMA automatic transfer enable bit
It is a mode setting that uses DMA for read and write operations to transmit and receive buffers for
transfer data and automatically transfers transmit and receive data in sync with IN and OUT data
requests from the HOST until data whose pieces are as many as the number of transfer data set in DMA
is transferred.
DMAE
0
1
Note:
Access to transmit and receive buffers by CPU is forbidden while the DMAE bit is set. Set the
number of DMA transfer data to a multiple of the value of the PKS set in direction the EP1 to EP5
control registers (EP1C to EP5C) when transferring data to OUT.
End Point 3 to End Point 1 are invalid.
End Point is assumed to be effective.
Specification prohibited
Isochronous transfer
Bulk transfer
Interrupt transfer
Function operating mode
OUT end point
IN end point
Release of the automatic buffer TRANSFER mode
Set of the automatic buffer TRANSFER mode
CHAPTER 13 USB FUNCTION
Operating mode
Operating mode
HOST operating mode
(for EP1 and EP2 only)
IN end point
OUT end point
Operating mode
277