AC1040F Datasheet, PDF (25/37 Pages) List of Unclassifed Manufacturers – Ultra Low Power 10/100 Quad RMII Ethernet Transceiver

AC104QF
Ultra Low Power 10/100 Quad RMII Ethernet Transceiver
Register 24: Mode Control Register
Reg.bit
Name
24.15 SDCM_Sel
24.14 NLP Disable
24.13 Force_link_up
24.12 Jabber Disable
24.11 Reserved
24.10 Conf_ALED
24.9 Reserved
24.8 FEF_Disable
24.7 Force FEF
Transmit
24.6 Rx_Er_Cnt Full
24.5 Disable Rx_Er_Cnt
24.4 Dis_WDT
24.3 En_RPBK
24.2 Dis_Scrm
24.1 Reserved
24.0 FX_SEL
Description
Select Common Mode Voltage for FX Signal Detect.
1 = Select internal common mode setting.
0 = Select external common mode setting.
1 = Force 10B-T link up without checking NLP.
0 = Normal Operation.
1 = Ignore link in 100Base-TX and transmit data.
ANeg must be disabled at this time (ANEGA pin tied
low).
0 = Normal Operation.
1 = Disable Jabber function in PHY.
0 = Enable Jabber function in PHY.
1 = Activity LED only responds to receive operation.
0 = Activity LED responds to receive and transmit.
This bit should be ignored when Reg. 0.8 is set one.
1 = Disable Far End Fault Insertion.
0 = Enable Far End Fault Insertion and detection
function.
This bit valid when FX mode is enabled.
1 = Force transmission of Far End Fault Insertion
pattern.
0 = Normal operation.
1 = Receive Error Counter full.
0 = Receive Error Counter not full.
1 = Disable Receive Error Counter.
0 = Enable Receive Error Counter.
1 = Disable the watchdog timer in the decipher.
0 = Enable watchdog timer.
1 = Enable remote loopback.
0 = Disable remote loopback.
1 = Enable 100M data scrambling.
0 = Disable 100M data scrambling.
When FX mode is selected, this bit will be forced to
zero.
1 = FX mode selected.
0 = Disable FX mode.
Mode
RO
RW
RW
Default
0
0
0
RW
0
RO
0
RW
0
RO
0
RW
Set by
FORCE 100
RW
0
RO/ RC
RW
RW
RW
RW
0
0
0
0
Set by
SCRAM_EN
RO
0
RW
Set by
!FX_DIS
Mode Table
FX_Dis Force 100
0
X
Scram_En
1
1
X
1
1
1
1
1
0
1
1
1
0
ANEGA
1
1
0
0
0
Condition
Port 3 100Base-FX
Port 0-2 Auto Negotiate 10Base-T or 100Base-TX
Port 0-3 Auto Negotiate 10Base-T or 100Base-TX
Port 0-3 Forced to 100Base-TX
Port 0-3 Forced to 10Base-T
Port 0-3 Forced to 100Base-TX (unscrambled)
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Altima Communications Inc. reserves the right to make changes to this document without notice.
Document Revision 4.0
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