
Revision History
Freescale Semiconductor
B-9
SDRAM
Controller
(continued)
Table 18-9/Page 18-19: Correct equations and examples in SDCFG1[ACT2RW, PRE2ACT, REF2ACT] fied
descriptions. Change ACT2RW to the following and change PRE2ACT and REF2ACT similarly.
“Suggested value = (t
RCD
x f
SD_CLK
) - 1 (Round up to nearest integer)
Example:
If t
RCD
= 20ns and f
SD_CLK
= 99 MHz
Suggested value = (20ns x 99 MHz) - 1 = 0.98; round to 1.”
Section 18.4.5/Page 18-20: Add the following note:
Note: The user should not probe memory on a DDR chip select to determine if memory is connected. If a read
is attempted from a DDR SDRAM chip select when there is no memory to respond with the appropriate
DQS pulses, the bus cycle hangs. Because there is no high level bus monitor on the device, a reset is the
only way to exit the error condition.
FEC
Table 19-2/Page 19-6: Correct MIB block counters end address to 0xFC03_02FF.
Corrected TCR[FEDN] bit to TCR[FDEN] in TCR section.
Corrected MIB memory boundarys in FEC module memory map table.
MII management frame registers section: Reworded sentence from “If the MSCRn register is written to a
non-zero value in the case of writing to MMFRn when MSCRn equals 0, an MII frame is generated with the
data previously written to the MMFRn.“ to “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. “
PAURn register figure, TYPE field change to read-only.
Table 19-3/Page 19-6: Correct ECR reset value from 0xF000_0002 to 0xF000_0000.
Table 19-3/Page 19-7: Correct register name typo in FEC memory map at address 0xFC03_0124. This should
be the Descriptor Group Lower Address Register (GALR).
Table 19-4/Page 19-8: Add RMON_R_DROP to the MIB counter memory map at address 0xFC03_0280 with a
description of Count of frames not counted correctly.
Figure 19-6/Page 19-13: Correct ECR reset value from 0xF000_0002 to 0xF000_0000.
FEC
(continued)
Section 19.4.7/Page 19-35: Add the following subsection entitled “Duplicate Frame Transmission”:
The FEC fetches transmit buffer descriptors (TxBDs) and the corresponding transmit data continuously until the
transmit FIFO is full. It does not determine whether the TxBD to be fetched is already being processed
internally (as a result of a wrap). As the FEC nears the end of the transmission of one frame, it begins to DMA
the data for the next frame. To remain one BD ahead of the DMA, it also fetches the TxBD for the next frame.
It is possible that the FEC will fetch from memory a BD that has already been processed but not yet written
back (that is, it is read a second time with the R bit remaining set). In this case, the data is fetched and
transmitted again.
Using at least three TxBDs fixes this problem for large frames, but not for small frames. To ensure correct
operation for large or small frames, one of the following must be true:
• The FEC software driver ensures that there is always at least one TxBD with the ready bit cleared.
• Every frame uses more than one TxBD and every TxBD but the last is written back immediately after the data
is fetched.
• The FEC software driver ensures a minimum frame size, n. The minimum number of TxBDs is then
(Tx FIFO Size
÷
(n + 4)) rounded up to the nearest integer (though the result cannot be less than three). The
default Tx FIFO size is 192 bytes; this size is programmable.
Table B-2. MCF5329RM Rev 1 to Rev. 2 Changes (continued)
Chapter
Description
MCF5329 Reference Manual, Rev 3
Содержание MCF5329
Страница 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 126: ...Enhanced Multiply Accumulate Unit EMAC 4 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 564: ...Liquid Crystal Display Controller LCDC 22 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 692: ...Programmable Interrupt Timers PIT0 PIT3 28 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 720: ...Queued Serial Peripheral Interface QSPI 30 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 790: ...Message Digest Hardware Accelerator MDHA 33 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 902: ...Register Memory Map Quick Reference A 26 Freescale Semiconductor MCF5329 Reference Manual Rev 3...