MC68EN360AI25VL Freescale, MC68EN360AI25VL Datasheet - Page 372
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
Available stocks
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Quantity
Price
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Part Number:
MC68EN360AI25VL
Manufacturer:
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Quantity:
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MC68EN360AI25VL
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IDMA Channels
IDMA channel 1 initialization required for this example:
7.6.4.6.2 Single Address Mode (Flyby Transfers). Each IDMA channel can be indepen-
dently programmed to provide single address transfers. Figure 7-14 illustrates a transfer
from memory to a peripheral. The DHR is not used by the IDMA, since the transfer occurs
directly from a device to memory. This mode is often referred to as "flyby" mode because
the DHR is not used.
7-48
• ICCR = $0720. Recommended normal configuration.
• FCR1 = $89. Source function code is 1000; destination function code is 1001.
• SAPR1 = $00000002. Source address.
• DAPR1 = $20000002. Destination address.
• BCR1 = $00000008. Byte transfer count.
• CSR1 = $FF. Clear any CSR bits that are currently set.
• CMAR1 = $00. Disable interrupts for this example.
• CMR1 = $4711. Internal maximum transfer rate; starts IDMA.
Bus Access #
10
11
1
2
3
4
5
6
7
8
9
Figure 7-14. Single Address Transfer Example
Freescale Semiconductor, Inc.
QUICC
Address (Hex)
IDMA
For More Information On This Product,
$00000002
$20000002
$20000003
$00000004
$20000004
$20000005
$20000006
$20000007
$00000008
$20000008
$20000009
MC68360 USER’S MANUAL
Go to: www.freescale.com
ADDR.
DACKx
JUST ONE BUS CYCLE
REQUIRED
Operation
DATA
BUS
Read
Write
Write
Read
Write
Write
Write
Write
Read
Write
Write
1
1
No. Bytes
2
1
1
4
1
1
1
1
2
1
1
PERIPHERAL
MEMORY
No. Bytes in DHR
2
1
0
4
3
2
1
0
2
1
0
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