Datasheet

 2010 Microchip Technology Inc. Preliminary DS39964B-page 381

PIC18F47J53 FAMILY

U-0 R/W-0 R-x R/C-0 R/W-0 R/W-0 R/W-0 U-0

— PPBRST

(2)

SE0 PKTDIS USBEN

(1)

RESUME SUSPND —

bit 7 bit 0

Legend: C = Clearable bit

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 7 Unimplemented: Read as ‘0’

bit 6 PPBRST: Ping-Pong Buffers Reset bit

(2)

1 = Reset all Ping-Pong Buffer Pointers to the Even Buffer Descriptor (BD) banks

0 = Ping-Pong Buffer Pointers are not being reset

bit 5 SE0: Live Single-Ended Zero Flag bit

1 = Single-ended zero is active on the USB bus

0 = No single-ended zero is detected

bit 4 PKTDIS: Packet Transfer Disable bit

1 = SIE token and packet processing are disabled, automatically set when a SETUP token is received

0 = SIE token and packet processing are enabled

bit 3 USBEN: USB Module Enable bit

(1)

1 = USB module and supporting circuitry are enabled (device attached)

0 = USB module and supporting circuitry are disabled (device detached)

bit 2 RESUME: Resume Signaling Enable bit

1 = Resume signaling is activated

0 = Resume signaling is disabled

bit 1 SUSPND: Suspend USB bit

1 = USB module and supporting circuitry are in Power Conserve mode, SIE clock inactive

0 = USB module and supporting circuitry are in normal operation, SIE clocked at the configured rate

bit 0 Unimplemented: Read as ‘0’

Note 1: Make sure the USB clock source is correctly configured before setting this bit.

2: There should be at least four cycles of delay between the setting and PPBRST.