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MPC8540 Datasheet(PDF) 708 Page - Freescale Semiconductor, Inc

Part # MPC8540
Description  MPC8540 PowerQUICC III??Integrated Host Processor Reference Manual
PDF  1302 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8540 Datasheet(HTML) 708 Page - Freescale Semiconductor, Inc

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MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1
14-82
Freescale Semiconductor
Three-Speed Ethernet Controllers
Table 14-88 describes the fields of the TUND register.
14.5.3.7.43Transmit Fragment Counter Register (TFRG)
Figure 14-91 shows the TFRG register.
Table 14-89 describes the fields of the TFRG register.
14.5.3.7.44Carry Register 1 (CAR1)
Carry register bits are cleared when written with a one. Figure 14-92 shows the CAR1 register.
Table 14-88. TUND Field Descriptions
Bits
Name
Description
0–19
—
Reserved
20–31 TDFR Transmit undersize frame counter. Increments for every frame less then 64 bytes, with a correct FCS
value.
0
19 20
31
R 0 0 0 0 000 000 0
0
0 0
0
0
0
0
0
0
TFRG
W
Reset
0000_0000_0000_0000_0000_0000_0000_0000
Offset
TSEC1:0x2_472C; TSEC2:0x2_572C
Figure 14-91. Transmit Fragment Counter Register Definition
Table 14-89. TFRG Field Descriptions
Bits
Name
Description
0–19
—
Reserved
20–31 TFRG Transmit fragment counter. Increments for every frame less then 64 bytes, with an incorrect FCS value.
0
1
234
5
6
7
14
15
R
C1
64
C1
127
C1
255
C1
511
C1
1K
C1
MAX
C1
MGV
00
0
0
0
0
0
0
C1
RBY
W
Reset
0000_0000_0000_0000
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
C1
RPK
C1
RFC
C1
RMC
C1
RBC
C1
RXC
C1
RXP
C1
RXU
C1
RAL
C1
RFL
C1
RCD
C1
RCS
C1
RUN
C1
ROV
C1
RFR
C1
RJB
C1
RDR
W
Reset
0000_0000_0000_0000
Offset
TSEC1:0x2_4730; TSEC2:0x2_5730
Figure 14-92. Carry Register 1 (CAR1) Register Definition



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