mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 670

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

Communication Processor Module
POINTER
POINTER
POINTER
POINTER
LENGTH
STATUS
LENGTH
STATUS
LENGTH
STATUS
LENGTH
STATUS
RECEIVED BY UART
CHARACTERS
TIME
E
Figure 16-74. SCC2 UART Receive Buffer Descriptor Example
0
E
E
1
E
0
0
32-BIT BUFFER POINTER
32-BIT BUFFER POINTER
32-BIT BUFFER POINTER
32-BIT BUFFER POINTER
10 CHARS
RECEIVE BD 1
RECEIVE BD 0
RECEIVE BD 3
RECEIVE BD 2
Freescale Semiconductor, Inc.
XXXX
0004
0008
0002
For More Information On This Product,
ID
ID
1
0
ID
0
MPC823 REFERENCE MANUAL
FR
Go to: www.freescale.com
1
LONG IDLE PERIOD
FRAMING ERROR
BYTE 4 HAS
IDLE TIMEOUT
OCCURRED
RECEPTION
PROGRESS
WITH THIS
BUFFER
STILL IN
BUFFER
FULL
MRBLR = 8 BYTES FOR SCC2
STORED UNLESS IDLE
COUNT EXPIRES
BYTE 4 ERROR!
HAS FRAMING ERROR!
BYTES WILL BE
FOURTH CHARACTER
ADDITIONAL
(MAX_IDL)
BUFFER
BUFFER
BYTE 10
BUFFER
BYTE 2
BUFFER
BYTE 9
BYTE 1
BYTE 3
EMPTY
BYTE 5
EMPTY
BYTE 8
BYTE 1
BYTE 2
ETC.
5 CHARS
PRESENT
MOTOROLA
TIME
8 BYTES
8 BYTES
8 BYTES
8 BYTES