
Fast Ethernet Controller (FEC)
19-2
Freescale Semiconductor
Figure 19-1. FEC Block Diagram
The descriptor controller is a RISC-based controller providing these functions in the FEC:
•
Initialization (those internal registers not initialized by you or hardware)
•
High level control of the DMA channels (initiating DMA transfers)
•
Interpreting buffer descriptors
•
Address recognition for receive frames
•
Random number generation for transmit collision backoff timer
FIFO
FEC DMA
MII
Receive
Transmit
Controller
I/O
PAD
MDO
MDEN
MDI
MII/7-Wire data
FIFO
RAM
FEC Bus
option
FEC_TXEN
FEC_TXD[3:0]
FEC_TXER
FEC_TXCLK
FEC_CRS
FEC_COL
FEC_RXCLK
FEC_RXDV
FEC_RXD[3:0]
FEC_RXER
FEC_MDC
FEC_MDIO
RAM
Internal Bus
Control/Status
Descriptor
Controller
Bus
Controller
(RISC +
microcode)
Registers
Interface
Internal Bus
Crossbar Switch
Master Bus
Interface
MIB
Counter RAM
MCF5329 Reference Manual, Rev 3
Summary of Contents for MCF5329
Page 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...