Datasheet

Section 22 USB Function Module (USB)
Rev. 2.00 Aug. 20, 2008 Page 848 of 1198
REJ09B0403-0200
22.3.21 DTC Transfer Setting Register (DMA)
DMA supports the DTC transfer that can be carried out between the endpoint 1 and 2 data
registers and memory by the data transfer controller (DTC). Dual address transfer is performed in
byte units. To initiate transfer by the DTC, necessary settings must be made to the DTC in
addition to the setting of this register.
Bit Bit Name
Initial
Value
R/W Description
7 to 3  All 0 R Reserved
These bits are always read as 0. The initial value
should not be changed.
2 PULLUP_E 0 R/W PULLUP Enable
This pin performs pull-up control for the D+ pin, with
use of PUPDPLS as the pull-up control pin.
0: D+ pull-up is disabled.
(The PULLUP pin is driven low.)
1: D+ pull-up is enabled.
(The PULLUP pin is driven high.)