Ethernet Controller Programming Model
MSC8113 Reference Manual, Rev. 0
Freescale Semiconductor
25-99
For the SMII MAC-to-PHY connection, both transmit and receive operation are
synchronized to the Ethernet controller output sync signal
ETHSYNC
. In this mode,
receiving an external SYNC signal is disabled.
If the Ethernet controller is connected to another MAC with the same capability to transmit and
receive frames synchronously to an incoming sync signal, the Ethernet controller drives the
output sync signal, and the
ETHSYNC_IN
signal is disabled.
MIIGSK_TIFBR allows you to determine the value of the
TXD[7–0]
signals that transfer data
between frames in the programmable inter-frame gap (IFG) period for both MAC-to-PHY and
MAC-to-MAC connections for SMII. On the PHY side of a MAC-to-PHY connection,
TXD[7–0] convey only packet data. For a MAC-to-MAC connection, TXD[7–0]
transfer signal
status values. You can write any value to these bits, but the SMII specification provides
recommended status bit definitions.
Note:
MIIGSK_TIFBR can be programmed only when MIIGSK_ENR[EN] = 0, that is, the
Ethernet controller is disabled.
Table 25-75. MIGSK_SMII_SYNCDIR Bit Descriptions
Bit
Reset
Description
Settings
—
0–29
0
Reserved.
SYNC_IN
30
0
SYNC_IN Enable
Enables/disables the ETHSYNC_IN input control
signal.
0
ETHSYNC_IN input control signal is
disabled.
1
ETH SYNC_IN input control signal is
enabled.
SYNC
31
0
SYNC Enable
Enables/disables the ETHSYNC output control
signal.
0
ETHSYNC output control signal is
disabled.
1
ETHSYNC output control signal is
enabled.
MIIGSK_TIFBR
MIIGSK SMII Transmit Inter-Frame Bits Register
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
—
Type
R
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
—
TXD7 TXD6 TXD5 TXD4 TXD3 TXD2 TXD1 TXD0
Type
R
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
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 ...