Datasheet

 2011-2012 Microchip Technology Inc. Preliminary DS61168E-page 135
PIC32MX1XX/2XX
REGISTER 10-14: U1FRMH: USB FRAME NUMBER HIGH REGISTER
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
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
23:16
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
15:8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
7:0
U-0 U-0 U-0 U-0 U-0 R-0 R-0 R-0
— — — — — FRMH<2:0>
Legend:
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 31-3 Unimplemented: Read as ‘0’
bit 2-0 FRMH<2:0>: The Upper 3 bits of the Frame Numbers bits
The register bits are updated with the current frame number whenever a SOF TOKEN is received.
REGISTER 10-15: U1TOK: USB TOKEN REGISTER
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
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
23:16
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
15:8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
7:0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PID<3:0>
(1)
EP<3:0>
Legend:
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 31-8 Unimplemented: Read as ‘0’
bit 7-4 PID<3:0>: Token Type Indicator bits
(1)
0001 = OUT (TX) token type transaction
1001 = IN (RX) token type transaction
1101 = SETUP (TX) token type transaction
Note: All other values are reserved and must not be used.
bit 3-0 EP<3:0>: Token Command Endpoint Address bits
The four bit value must specify a valid endpoint.
Note 1: All other values are reserved and must not be used.