MCF5282CVF80J Freescale Semiconductor, MCF5282CVF80J Datasheet - Page 351
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MCF5282CVF80J
Manufacturer Part Number
MCF5282CVF80J
Description
IC MPU 512K FLASH 256MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF528xr
Datasheet
1.MCF5216CVM66J.pdf
(766 pages)
Specifications of MCF5282CVF80J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
80MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, SPI, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
150
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
256-MAPBGA
Processor Series
MCF528x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5282-KIT
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5282CVF80J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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17.5.11 Full Duplex Flow Control
Full-duplex flow control allows you to transmit pause frames and to detect received pause frames. Upon
detection of a pause frame, MAC data frame transmission stops for a given pause duration.
To enable PAUSE frame detection, the FEC must operate in full-duplex mode (TCR[FDEN] set) with flow
control (RCR[FCE] set). The FEC detects a pause frame when the fields of the incoming frame match the
pause frame specifications, as shown in
frame should indicate that the frame is valid.
The receiver and microcontroller modules perform PAUSE frame detection. The microcontroller runs an
address recognition subroutine to detect the specified pause frame destination address, while the receiver
detects the type and opcode pause frame fields. On detection of a pause frame, TCR[GTS] is set by the
FEC internally. When transmission has paused, the EIR[GRA] interrupt is asserted and the pause timer
begins to increment. The pause timer uses the transmit backoff timer hardware for tracking the appropriate
collision backoff time in half-duplex mode. The pause timer increments once every slot time, until
OPD[PAUSE_DUR] slot times have expired. On OPD[PAUSE_DUR] expiration, TCR[GTS] is cleared
allowing MAC data frame transmission to resume. The receive flow control pause status bit
(TCR[RFC_PAUSE]) is set while the transmitter pauses due to reception of a pause frame.
To transmit a pause frame, the FEC must operate in full-duplex mode and you must set flow control pause
(TCR[TFC_PAUSE]). After TCR[TFC_PAUSE] is set, the transmitter sets TCR[GTS] internally. When
the transmission of data frames stops, the EIR[GRA] (graceful stop complete) interrupt asserts and the
pause frame is transmitted. TCR[TFC_PAUSE,GTS] are then cleared internally.
You must specify the desired pause duration in the OPD register.
Freescale Semiconductor
48-bit Destination Address
Table 17-37. Destination Address to 6-Bit Hash (continued)
16-bit PAUSE Duration
48-bit Source Address
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
16-bit Opcode
FDFF_FFFF_FFFF
DDFF_FFFF_FFFF
BDFF_FFFF_FFFF
9DFF_FFFF_FFFF
16-bit Type
Table 17-38. PAUSE Frame Field Specification
48-bit DA
Table
17-38. In addition, the receive status associated with the
6-bit Hash
0x0180_C200_0001 or Physical Address
(in hex)
0x3C
0x3D
0x3E
0x3F
0x0000 – 0xFFFF
0x8808
0x0001
Hash Decimal
Any
Value
60
61
62
63
Fast Ethernet Controller (FEC)
17-41
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