PIC17LC752-08/JWQTP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC17LC752-08/JWQTP

High-Performance 8-Bit CMOS EPROM Microcontrollers

Microchip Technology 

PIC17C75X

FIGURE F-10: TXSTA1 REGISTER (ADDRESS: 15h, BANK 0)

TXSTA2 REGISTER (ADDRESS: 15h, BANK 4)

R/W - 0 R/W - 0 R/W - 0 R/W - 0

CSRC TX9 TXEN SYNC

bit7

U-0

—

U-0

—

R-1

TRMT

bit 7:

CSRC: Clock Source Select bit

Synchronous mode:

1 = Master Mode (Clock generated internally from BRG)

0 = Slave mode (Clock from external source)

Asynchronous mode:

Don’t care

R/W - x

TX9D

bit0

R = Readable bit

W = Writable bit

-n = Value at POR reset

(x = unknown)

bit 6:

TX9: 9-bit Transmit Select bit

1 = Selects 9-bit transmission

0 = Selects 8-bit transmission

bit 5:

TXEN: Transmit Enable bit

1 = Transmit enabled

0 = Transmit disabled

SREN/CREN overrides TXEN in SYNC mode

bit 4:

SYNC: USART Mode Select bit

(Synchronous/Asynchronous)

1 = Synchronous mode

0 = Asynchronous mode

bit 3-2: Unimplemented: Read as '0'

bit 1:

TRMT: Transmit Shift Register (TSR) Empty bit

1 = TSR empty

0 = TSR full

bit 0: TX9D: 9th bit of transmit data (can be used to calculated the parity in software)

DS30264A-page 282

Preliminary

© 1997 Microchip Technology Inc.

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