PIC16F1459-ESSQTP datasheet(326/418 Pages) MICROCHIP

326 / 418 page

PIC16(L)F1454/5/9

DS41639A-page 326

Preliminary

 2012 Microchip Technology Inc.

26.11 Register Definitions: USB

UCON: USB CONTROL REGISTER

U-0

R/W-0

R-x

R/C-0

R/W-0

U-0

—

PPBRST

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

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

0 = Ping-Pong Buffer Pointers not being reset

bit 5

SE0:

Live Single-Ended Zero Flag bit

1 = Single-ended zero active on the USB bus

0 = No single-ended zero detected

bit 4

PKTDIS:

Packet Transfer Disable bit

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

0 = SIE token and packet processing enabled

bit 3

USBEN:

USB Module Enable bit(1)

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

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

bit 2

RESUME:

Resume Signaling Enable bit

1 = Resume signaling activated

0 = Resume signaling disabled

bit 1

SUSPND:

Suspend USB bit

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

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

bit 0

Unimplemented

: Read as ‘0’

Note 1:

This bit cannot be set if the USB module does not have an appropriate clock source.

PIC16F1459-ESSQTP Datasheet(PDF) 326 Page - Microchip Technology

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