MSC8113 Reference Manual, Rev. 0
25-86
Freescale Semiconductor
Ethernet Controller
MACCFG2R is a user-programmable register that configures several MAC features.
Table 25-59. MACCFG2R Field Descriptions
Bit
Reset
Description
Settings
—
0–15
0
Reserved. Write to zero for future compatibility.
PREAL
16–19
0111
Preamble Length
Determines the length in bytes of the preamble field in the
packet. The maximum value is 0x7, which is the default value.
A preamble length of 0 is not supported.
—
20–25
000100
Reserved. Write to 000100 for future compatibility.
26
0
Reserved. Write to zero for future compatibility.
LENC
27
0
Length Check
Causes the MAC to check the frame length field to ensure that
it matches the actual data field length.
0
No length field checking.
1
The MAC checks the frame
length field.
—
28
0
Reserved. Write to zero for future compatibility.
PADCRC
29
0
PAD/CRC
Indicates padding and CRC status.
0
No padding and no CRC.
1
The MAC pads all transmitted
short frames and appends a
CRC to every frame.
CRCEN
30
0
CRC Enable
Enables MAC CRC checking.
Note:
If the configuration bit PAD/CRC ENABLE or the
per-packet PAD/CRC ENABLE is set, CRC ENABLE
is ignored.
0
Frame valid with valid CRC.
1
Frame or CRC not valid.
FDUP
31
O
Full Duplex
Selects half-duplex or full-duplex mode.
0
Half-duplex mode.
1
Full-duplex mode.
IPGIFGR
Inter-Packet Gap/Inter-Frame Gap Register
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
—
NBBIPG1
—
NBBIPG2
Type
R
R/W
R
R/W
Reset
0
1
0
0
0
0
0
0
0
1
1
0
0
0
0
0
Bit
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
MIFGE
—
BBIPG
Type
R/W
R
R/W
Reset
0
1
0
1
0
0
0
0
0
1
1
0
0
0
0
0
Summary of Contents for MSC8113
Page 1: ...MSC8113 Reference Manual Tri Core 16 Bit Digital Signal Processor MSC8113RM Rev 0 May 2008 ...
Page 20: ...MSC8113 Reference Manual Rev 0 xx Freescale Semiconductor Contents ...
Page 28: ...MSC8113 Reference Manual Rev 0 xxviii Freescale Semiconductor ...
Page 56: ...MSC8113 Reference Manual Rev 0 1 28 Freescale Semiconductor MSC8113 Overview ...
Page 76: ...MSC8113 Reference Manual Rev 0 2 20 Freescale Semiconductor SC140 Core Overview ...
Page 134: ...MSC8113 Reference Manual Rev 0 4 30 Freescale Semiconductor System Interface Unit SIU ...
Page 168: ...MSC8113 Reference Manual Rev 0 6 18 Freescale Semiconductor Boot Program ...
Page 180: ...MSC8113 Reference Manual Rev 0 7 12 Freescale Semiconductor Clocks ...
Page 260: ...MSC8113 Reference Manual Rev 0 8 80 Freescale Semiconductor Memory Map ...
Page 300: ...MSC8113 Reference Manual Rev 0 9 40 Freescale Semiconductor Extended Core ...
Page 304: ...MSC8113 Reference Manual Rev 0 10 4 Freescale Semiconductor MQBus and M2 Memory ...
Page 308: ...MSC8113 Reference Manual Rev 0 11 4 Freescale Semiconductor SQBus ...
Page 590: ...MSC8113 Reference Manual Rev 0 17 46 Freescale Semiconductor Interrupt Processing ...
Page 614: ...MSC8113 Reference Manual Rev 0 18 24 Freescale Semiconductor Debugging ...
Page 622: ...MSC8113 Reference Manual Rev 0 19 8 Freescale Semiconductor Internal Peripheral Bus IPBus ...
Page 724: ...MSC8113 Reference Manual Rev 0 21 32 Freescale Semiconductor UART ...
Page 920: ...MSC8113 Reference Manual Rev 0 25 150 Freescale Semiconductor Ethernet Controller ...
Page 1171: ...MSC8113 Reference Manual Rev 0 Freescale Semiconductor C 61 EF wait_rts P 01077FFC 9F rts 71 ...
Page 1172: ...MSC8113 Reference Manual Rev 0 C 62 Freescale Semiconductor MSC8113 Boot Code ...
Page 1202: ...MSC8113 Reference Manual Rev 0 Index 30 Freescale Semiconductor Index ...