PIC24EP256GU810-I Datasheet, PDF (407/622 Pages) Electronic Film Capacitors, Inc. – 16-Bit Microcontrollers and Digital Signal Controllers with High-Speed PWM, USB and Advanced Analog

dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
REGISTER 22-22: UxEPn: USB ENDPOINT n CONTROL REGISTERS (n = 0 TO 15)
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
bit 15
U-0
—
bit 8
R/W-0
R/W-0
U-0
LSPD⁽¹⁾ RETRYDIS⁽¹⁾
—
bit 7
R/W-0
EPCONDIS
R/W-0
EPRXEN
R/W-0
EPTXEN
R/W-0
EPSTALL
R/W-0
EPHSHK
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
LSPD: Low-Speed Direct Connection Enable bit (UEP0 only)⁽¹⁾
1 = Direct connection to a low-speed device is enabled
0 = Direct connection to a low-speed device is disabled
RETRYDIS: Retry Disable bit (UEP0 only)⁽¹⁾
1 = Retry NAK transactions is disabled
0 = Retry NAK transactions is enabled; retry done in hardware
Unimplemented: Read as ‘0’
EPCONDIS: Bidirectional Endpoint Control bit
If EPTXEN and EPRXEN = 1:
1 = Disable Endpoint n from control transfers; only TX and RX transfers are allowed
0 = Enable Endpoint n for control (SETUP) transfers; TX and RX transfers are also allowed
For all other combinations of EPTXEN and EPRXEN:
This bit is ignored.
EPRXEN: Endpoint Receive Enable bit
1 = Endpoint n receive is enabled
0 = Endpoint n receive is disabled
EPTXEN: Endpoint Transmit Enable bit
1 = Endpoint n transmit is enabled
0 = Endpoint n transmit is disabled
EPSTALL: Endpoint Stall Status bit
1 = Endpoint n was stalled
0 = Endpoint n was not stalled
EPHSHK: Endpoint Handshake Enable bit
1 = Endpoint handshake is enabled
0 = Endpoint handshake is disabled (typically used for isochronous endpoints)
Note 1: These bits are available only for UxEP0 and only in Host mode. For all other UxEPn registers, these bits
are always unimplemented and read as ‘0’.
 2009-2012 Microchip Technology Inc.
DS70616G-page 407