MCF5282CVM66 Freescale, MCF5282CVM66 Datasheet - Page 279
MCF5282CVM66
Manufacturer Part Number
MCF5282CVM66
Description
Manufacturer
Freescale
Datasheet
1.MCF5282CVM66.pdf
(766 pages)
Specifications of MCF5282CVM66
Cpu Family
MCF528x
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
66MHz
Interface Type
CAN/I2C/QSPI/UART
Total Internal Ram Size
64KB
# I/os (max)
150
Number Of Timers - General Purpose
12
Operating Supply Voltage (typ)
3.3V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
256
Package Type
MA-BGA
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
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10–8
5–4
2–0
Bit
7
6
3
Name
IMRS Initiate mode register set (
CBM Command and bank MUX [2:0]. Because different SDRAM configurations cause the command and
PS
—
IP
—
bank select lines to correspond to different addresses, these resources are programmable. CBM
determines the addresses onto which these functions are multiplexed.
Note: It is important to set CBM according to the location of the command bit.
This encoding and the address multiplexing scheme handle common SDRAM organizations. Bank
select bits include a base bit and all address bits above for SDRAMs with multiple bank select bits.
Reserved, should be cleared.
SDRAMs. In initialization, IMRS should be set only after all DRAM controller registers are initialized
and
block programs the SDRAM’s mode register. Thus, the address of the access should be programmed
to place the correct mode information on the SDRAM address pins. Because the SDRAM does not
register this information, it doesn’t matter if the IMRS access is a read or a write or what, if any, data is
put onto the data bus. The DRAM controller clears IMRS after the
0 Take no action
1 Initiate
Port size. Indicates the port size of the associated block of SDRAM, which allows for dynamic sizing of
associated SDRAM accesses. PS functions the same in asynchronous operation.
00 32-bit port
01 8-bit port
1x 16-bit port
Initiate precharge all (
finished. Accesses via IP should be no wider than the port size programmed in PS.
0 Take no action.
1 A
Reserved, should be cleared.
executed after all DRAM controller registers are programmed. After IP is set, the next write to an
appropriate SDRAM address generates the
PALL
PALL
and
command is sent to the associated SDRAM block. During initialization, this command is
MRS
Table 15-5. DACRn Field Descriptions (continued)
REFRESH
command
PALL
commands have been issued. After IMRS is set, the next access to an SDRAM
MRS
) command. The DRAM controller clears IP after the
CBM
000
001
010
011
100
101
110
111
) command. Setting IMRS generates a
Command Bit
Description
PALL
17
18
19
20
21
22
23
24
command to the SDRAM block.
Bank Select Bits
18 and up
19 and up
20 and up
21 and up
22 and up
23 and up
24 and up
25 and up
MRS
Synchronous DRAM Controller Module
MRS
command finishes.
command to the associated
PALL
command is
15-7
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