MCF5282CVM66 Freescale, MCF5282CVM66 Datasheet - Page 323
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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17.4.7
The MMFR is user-accessible and does not reset to a defined value. The MMFR register is used to
communicate with the attached MII compatible PHY device(s), providing read/write access to their MII
registers. Performing a write to the MMFR causes a management frame to be sourced unless the MSCR is
programmed to 0. If MSCR is cleared while MMFR is written and then MSCR is written with a non-zero
value, an MII frame is generated with the data previously written to the MMFR. This allows MMFR and
MSCR to be programmed in either order if MSCR is currently zero.
Freescale Semiconductor
ETHER_EN
IPSBAR
RESET
Offset:
Field
31–2
Reset 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1
0
IPSBAR
W
R 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ETHER
Offset:
Reset — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
0x1024
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
W
Reserved, must be cleared.
When this bit is set, FEC is enabled, and reception and transmission are possible. When this bit is cleared,
reception immediately stops and transmission stops after a bad CRC is appended to any currently transmitted
frame. The buffer descriptor(s) for an aborted transmit frame are not updated after clearing this bit. When
ETHER_EN is cleared, the DMA, buffer descriptor, and FIFO control logic are reset, including the buffer descriptor
and FIFO pointers. Hardware alters the ETHER_EN bit under the following conditions:
When this bit is set, the equivalent of a hardware reset is performed but it is local to the FEC. ECR[ETHER_EN]
is cleared and all other FEC registers take their reset values. Also, any transmission/reception currently in progress
is abruptly aborted. This bit is automatically cleared by hardware during the reset sequence. The reset sequence
takes approximately eight internal bus clock cycles after this bit is set.
R
MII Management Frame Register (MMFR)
• ECR[RESET] is set by software, in which case ETHER_EN is cleared
• An error condition causes the EIR[EBERR] bit to set, in which case ETHER_EN is cleared
0x1040
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
ST
OP
Figure 17-7. MII Management Frame Register (MMFR)
PA
Figure 17-6. Ethernet Control Register (ECR)
Table 17-9. ECR Field Descriptions
RA
Description
TA
8
7
DATA
8
6
7
Access: User read/write
5
Fast Ethernet Controller (FEC)
6
4
Access: User read/write
5
3
4
2
3
_EN
2
0
1
1
RESET
0
17-13
0
0
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