PIC32MX1XX/2XX
REGISTER 10-16: U1SOF: USB SOF THRESHOLD REGISTER
Bit
Range
31:24
23:16
15:8
7:0
Bit
31/23/15/7
U-0
Bit
30/22/14/6
U-0
Bit
29/21/13/5
U-0
Bit
28/20/12/4
U-0
Bit
27/19/11/3
U-0
Bit
26/18/10/2
U-0
Bit
25/17/9/1
U-0
Bit
24/16/8/0
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-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
CNT<7:0>
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 31-8
Unimplemented:
Read as ‘0’
bit 7-0
CNT<7:0>:
SOF Threshold Value bits
Typical values of the threshold are:
01001010
= 64-byte packet
00101010
= 32-byte packet
00011010
= 16-byte packet
00010010
= 8-byte packet
REGISTER 10-17: U1BDTP1: USB BDT PAGE 1 REGISTER
Bit
Range
31:24
23:16
15:8
7:0
Bit
31/23/15/7
U-0
Bit
30/22/14/6
U-0
Bit
29/21/13/5
U-0
Bit
28/20/12/4
U-0
Bit
27/19/11/3
U-0
Bit
26/18/10/2
U-0
Bit
25/17/9/1
U-0
Bit
24/16/8/0
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
R/W-0
—
R/W-0
—
R/W-0
—
R/W-0
—
R/W-0
—
R/W-0
—
R/W-0
—
U-0
BDTPTRL<15:9>
—
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 31-8
Unimplemented:
Read as ‘0’
bit 7-1
BDTPTRL<15:9>:
BDT Base Address bits
This 7-bit value provides address bits 15 through 9 of the BDT base address, which defines the starting
location of the BDT in system memory.
The 32-bit BDT base address is 512-byte aligned.
Unimplemented:
Read as ‘0’
bit 0
©
2011-2012 Microchip Technology Inc.
Preliminary
DS61168D-page 139
MICROCHIP [ MICROCHIP TECHNOLOGY ]
