MPC823 datasheet(25/74 Pages) MOTOROLA

tên linh kiện	MPC823

Giải thích chi tiết về linh kiện	Communication Processor Module

PDF	74 Pages

Scroll/Zoom	100%

nhà sản xuất	MOTOROLA [Motorola, Inc]

Trang chủ	http://www.freescale.com

Logo

25 / 74 page

Communication Processor Module

MOTOROLA

MPC823 REFERENCE MANUAL

16-403

RX—Receive Buffer

This bit indicates that a buffer has been received and its associated RX buffer descriptor is

now closed. It is set in the middle of the last stop bit of the last character that is written to the

receive buffer.

Figure 16-117. SMCx UART Interrupt Example

LINE IDLE

10 CHARACTERS

CHARACTERS

RECEIVED BY SMC UART

TIME

RXD

LINE IDLE

7 CHARACTERS

LINE IDLE

TXD

BREAK

BRK

NOTES:

1. The first RX event assumes receive buffers are six bytes each.

2. The second RX event position is programmable based on the max_IDL value.

3. The BRK event occurs after the first break character is received.

NOTE: The TX event assumes all seven characters were put into a single buffer, and the TX event occurred when the seventh

character was written to the SMC transmit FIFO.

SMC UART SMCE

EVENTS

CHARACTERS

TRANSMITTED BY SMC UART

SMC UART SMCE

EVENTS

BRKE

MPC823 bảng dữ liệu(PDF) 25 Page - Motorola, Inc