MC68EN360AI25VL Freescale, MC68EN360AI25VL Datasheet - Page 484

• Manufacturer Part Number: MC68EN360AI25VL
• Manufacturer: Freescale

Specifications of MC68EN360AI25VL

• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 25MHz
• Instruction Set Architecture: RISC
• Operating Supply Voltage (max): 3.3V
• Operating Supply Voltage (min): 2.7V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 240
• Package Type: FQFP
• Lead Free Status / RoHS Status: Compliant

Serial Communication Controllers (SCCs)
An example of the SCC UART Rx BD process is shown in Figure 7-48.
7-160
7. Receiving an address character when working in multidrop mode (The address char-
POINTER
POINTER
POINTER
POINTER
LENGTH
LENGTH
LENGTH
LENGTH
STATUS
STATUS
STATUS
STATUS
acter is written to the next buffer for software comparison.)
RECEIVED BY UART
CHARACTERS
TIME
E
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
Figure 7-48. SCC UART Rx BD Example
XXXX
Freescale Semiconductor, Inc.
0004
0008
0002
ID
ID
1
0
ID
0
For More Information On This Product,
MC68360 USER’S MANUAL
FR
1
Go to: www.freescale.com
LONG IDLE PERIOD
FRAMING ERROR
BYTE 4 HAS
IDLE TIMEOUT
OCCURRED
RECEPTION
PROGRESS
WITH THIS
STILL IN
BUFFER
BUFFER
FULL
MRBLR = 8 BYTES FOR THIS SMC
STORED UNLESS IDLE
COUNT EXPIRES
BYTE 4 ERROR!
BYTES WILL BE
HAS FRAMING ERROR!
FOURTH CHARACTER
ADDITIONAL
(MAX_IDL)
BUFFER
BUFFER
BYTE 10
BUFFER
BYTE 2
BYTE 9
BYTE 1
BYTE 3
EMPTY
BYTE 5
BUFFER
EMPTY
BYTE 8
BYTE 1
BYTE 2
ETC.
5 CHARS
PRESENT
TIME
8 BYTES
8 BYTES
8 BYTES
8 BYTES