mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 848

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

Communication Processor Module
PM—Parity Mode
SM—SMCx Mode
DM—Diagnostic Mode
TEN—SMCx Transmit Enable
REN—SMCx Receive Enable
16.11.6.11 SMCx UART RECEIVE BUFFER DESCRIPTOR. Using the buffer descriptors,
the communication processor module reports information about the received data on a
per-buffer basis. It then closes the current buffer, generates a maskable interrupt, and starts
receiving data into the next buffer when one of the following events occurs:
OFFSET + 0
OFFSET + 2
OFFSET + 4
OFFSET + 6
NOTE: You are only responsible for initializing the items in bold.
• An error is received while a message is being processed.
• A full receive (RX) buffer is detected.
• A programmable number of consecutive idle characters are received.
0 = Odd parity.
1 = Even parity.
00 = GCI or SCIT support.
01 = Reserved.
10 = UART mode (must be selected for SMCx UART operation).
11 = Totally Transparent mode.
00 = Normal mode.
01 = Local loopback mode.
10 = Echo mode.
11 = Reserved.
0 = SMCx transmitter disabled.
1 = SMCx transmitter enabled.
0 = SMCx receiver disabled.
1 = SMCx receiver enabled.
0
E
Note: The communication processor module sets all the status bits in this buffer
RES
1
descriptor, but you must clear them before submitting the buffer descriptor to the
communication processor module.
W
2
Freescale Semiconductor, Inc.
For More Information On This Product,
3
I
RESERVED
MPC823 REFERENCE MANUAL
4
Go to: www.freescale.com
5
RX DATA BUFFER POINTER
CM
6
DATA LENGTH
ID
7
RESERVED
8
9
BR
10
FR
11
PR
12
RES
13
MOTOROLA
OV
14
RES
15