mpc235 Megawin Technology, mpc235 Datasheet - Page 19

• Manufacturer Part Number: mpc235
• Description: Low-speed Usb Micro-controller
• Manufacturer: Megawin Technology

DCON: Device Control Register
Read/Write
Default: 0XXX_X001
USB SFR Description
Number
MEGAWIN
Bit
7
6
5
4
3
2
1
0
CONPUEN
Mnemonic
TESTEN
EP3DIR
PUREN
Bit
-
-
-
-
TEST mode Enable:
Use for test only. In normal operation, this bit should be cleared to “0”.
Reserved:
Write zero to this bit.
Reserved:
Write zero to this bit.
Reserved:
Write zero to this bit.
Reserved:
Write zero to this bit.
Endpoint 3 Direction:
When this bit is set by FW to enable endpoint 3 to be a TX endpoint.
Endpoint 3 behaves as a RX endpoint when this bit is cleared to ‘0’.
D- Pull-Up Resistor Enable:
When this bit is set to ‘1’, enable internal D- pull-up resistor. After setting
this bit, the device will act a connection to USB host.
Device USP Connection Pull-Up Enable:
This bit is used by FW to control whether device is connected to upper
host/hub via driving bus SE0. Set ‘1’ to release bus to expose the D- pull-
up resistor. Clear ‘0’ to force bus SE0 to inhibit the D- pull-up resistor.
Default is set to ‘1’ after reset. FW can clear to ‘0’ to disable connection to
upper host/hub.
MPC235 Technical Summary
Function
Address: 01H
System Reset
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