MC68EN360AI25VL Freescale, MC68EN360AI25VL Datasheet - Page 359
MC68EN360AI25VL
Manufacturer Part Number
MC68EN360AI25VL
Description
Manufacturer
Freescale
Datasheet
1.MC68EN360AI25VL.pdf
(962 pages)
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
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The data associated with each IDMA channel for the auto buffer and buffer chaining modes
is stored in buffers. Each buffer is referenced by a BD. The BDs use a ring structure located
in the dual-port RAM.
7.6.4.2.1 IDMA Parameter RAM. When an IDMA channel is configured to the auto buffer or
buffer chaining mode, the QUICC uses the IDMA parameters listed in Table 7-2.T
The IBASE entry defines the starting location in the dual-port RAM for the set of IDMA BDs.
It is an offset from the beginning of the dual-port RAM. The user must initialize this entry
before enabling the IDMA channel. Furthermore, the user should not overlap BD tables of
two enabled serial channels or IDMA channels, or erratic operation will result. IBASE should
contain a value that is divisible by 16.
SOURCE DEVICE OR
SOURCE DEVICE OR
SOURCE DEVICE OR
SOURCE DEVICE OR
DATA BUFFER 2
DATA BUFFER N
DATA BUFFER 1
DATA BUFFER 0
IDMA Base + 00
IDMA Base + 02
IDMA Base + 04
IDMA Base + 08
ADDRESS (IBASE)
NOTE: The entry in boldface must be initialized by the user.
IDMA BD BASE
Address
Freescale Semiconductor, Inc.
For More Information On This Product,
Table 7-3. IDMA Parameter RAM
Figure 7-9. IDMA BD Ring
ISTATE
ITEMP
IBASE
IBPTR
Name
MC68360 USER’S MANUAL
Go to: www.freescale.com
BD 0
BD 1
BD 2
BD N
Width
Word
Word
Long
Long
IDMA BD Base Address
IDMA BD Pointer
IDMA Internal State
IDMA Temp
Description
DESTINATION DEVICE
DESTINATION DEVICE
DESTINATION DEVICE
DESTINATION DEVICE
OR DATA BUFFER 0
OR DATA BUFFER 2
OR DATA BUFFER N
OR DATA BUFFER 1
IDMA Channels
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