PIC32MX440F256H-80I Datasheet, PDF (271/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
REGISTER 11-14: U1FRMH: USB FRAME COUNT HIGH REGISTER
r-x
r-x
r-x
r-x
r-x
r-x
r-x
r-x
—
—
—
—
—
—
—
—
bit 31
bit 24
r-x
r-x
r-x
r-x
r-x
r-x
r-x
r-x
—
—
—
—
—
—
—
—
bit 23
bit 16
r-x
r-x
r-x
r-x
r-x
r-x
r-x
r-x
—
—
—
—
—
—
—
—
bit 15
bit 8
r-x
r-x
r-x
r-x
r-x
R-0
R-0
R-0
—
—
—
—
—
FRMH<2:0>
bit 7
bit 0
Legend:
R = Readable bit
U = Unimplemented bit
W = Writable bit
P = Programmable bit
-n = Bit Value at POR: (‘0’, ‘1’, x = Unknown)
r = Reserved bit
bit 31-3
bit 2-0
Reserved: Write ‘0’; ignore read
FRMH<2:0>: The Upper 3 Bits of the Frame Numbers
The register bits are updated with the current frame number whenever a SOF TOKEN is received.
© 2008 Microchip Technology Inc.
Preliminary
DS61143E-page 269