Datasheet

 2015 Microchip Technology Inc. Preliminary DS60001320B-page 213
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
REGISTER 11-4: USBCSR3: USB CONTROL STATUS REGISTER 3
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
R/W-0 R/W-0, HC R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FORCEHST FIFOACC FORCEFS FORCEHS PACKET TESTK TESTJ NAK
23:16
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — ENDPOINT<3:0>
15:8
U-0 U-0 U-0 U-0 U-0 R-0 R-0 R-0
— — — — —RFRMUM<10:8>
7:0
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RFRMNUM<7:0>
Legend: HC = Hardware Cleared
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31
FORCEHST: Test Mode Force Host Select bit
1 = Forces USB module into Host mode, regardless of whether it is connected to any peripheral
0 = Normal operation
bit 30
FIFOACC: Test Mode Endpoint 0 FIFO Transfer Force bit
1 = Transfers the packet in the Endpoint 0 TX FIFO to the Endpoint 0 RX FIFO
0 = No transfer
bit 29
FORCEFS: Test mode Force Full-Speed Mode Select bit
This bit is only active if FORCEHST = 1.
1 = Forces USB module into Full-Speed mode. Undefined behavior if FORCEHS = 1.
0 = If FORCEHS = 0, places USB module into Low-Speed mode.
bit 28
FORCEHS: Test mode Force Hi-Speed Mode Select bit
This bit is only active if FORCEHST = 1.
1 = Forces USB module into Hi-Speed mode. Undefined behavior if FORCEFS = 1.
0 = If FORCEFS = 0, places USB module into Low-Speed mode.
bit 27
PACKET: Test_Packet Test Mode Select bit
This bit is only active if module is in Hi-Speed mode.
1 = The USB module repetitively transmits on the bus a 53-byte test packet. Test packet must be loaded
into the Endpoint 0 FIFO before the test mode is entered.
0 = Normal operation
bit 26
TESTK: Test_K Test Mode Select bit
1 = Enters Test_K test mode. The USB module transmits a continuous K on the bus.
0 = Normal operation
This bit is only active if the USB module is in Hi-Speed mode.
bit 25
TESTJ: Test_J Test Mode Select bit
1 = Enters Test_J test mode. The USB module transmits a continuous J on the bus.
0 = Normal operation
This bit is only active if the USB module is in Hi-Speed mode.
bit 24
NAK: Test_SE0_NAK Test Mode Select bit
1 = Enter Test_SE0_NAK test mode. The USB module remains in Hi-Speed mode but responds to any valid
IN token with a NAK
0 = Normal operation
This mode is only active if module is in Hi-Speed mode.
bit 23-20
Unimplemented: Read as ‘0’