FWIXEPAD0SE001 INTEL [Intel Corporation], FWIXEPAD0SE001 Datasheet - Page 42
FWIXEPAD0SE001
Manufacturer Part Number
FWIXEPAD0SE001
Description
Advanced 8-Port 10/100 Mbps PHY Transceivers
Manufacturer
INTEL [Intel Corporation]
Datasheet
1.FWIXEPAD0SE001.pdf
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LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
44
Table 13. Intel
1. Type Column Coding: I = Input, O = Output, OD = Open Drain Output, ST = Schmitt Triggered Input, TS =
2. The IP/ID resistors are disabled during hardware power-down mode.
PQFP
174
175
178
177
176
50
88
89
90
91
92
Three-State-able Output, SL = Slew-rate Limited Output, IP = Weak Internal Pull-Up, ID = Weak Internal
Pull-Down.
Designation
®
Pin/Ball
LXT9785/LXT9785E Miscellaneous Signal Descriptions – PQFP (Sheet 2 of 4)
PBGA
M15
L17,
L14
M2,
M3,
L16
L15
N1,
L4,
D5
N2
MODESEL_1
MODESEL_0
PWRDWN
SECTION
Symbol
PAUSE
RESET
ADD_4
ADD_3
ADD_2
ADD_1
ADD_0
I, ID, ST
I, ST, ID
I, ST, ID
I, ST, ID
I, ST, ID
I, ST, IP
Type
1
Signal Description
Pause Default.
This pin is read at startup or reset. Its value at that time
is used to set the default state of Register bit 4.10 for
all ports. This register bit can be read and overwritten
after startup / reset.
When High, the LXT9785/9785E advertises Pause
capabilities on all ports during auto-negotiation.
This pin is shared with RMII-RxER1. An external pull-
up resistor (see applications section for value) can be
used to set Pause active while RxER1 is three-stated
during H/W reset. If no pull-up is used, the default
Pause state is set inactive via the internal pull-down
resistor.
Power-Down.
When High, forces the LXT9785/9785E into global
power-down mode.
Pin is not on JTAG chain.
Reset.
This active low input is ORed with the control register
Reset Register bit 0.15. When held Low, all outputs are
forced to inactive state.
Pin is not on JTAG chain.
Address <4:0>.
Sets base address. Each port adds its port number
(starting with 0) to this address to determine its PHY
address.
Port 0 Address = Base
Port 1 Address = Base + 1
Port 2 Address = Base + 2
Port 3 Address = Base + 3
Port 4 Address = Base + 4
Port 5 Address = Base + 5
Port 6 Address = Base + 6
Port 7 Address = Base + 7
Mode Select[1:0].
00 = RMII
01 = SMII
10 = SS-SMII
11 = Reserved
All ports are configured the same. Interfaces cannot be
mixed and must be all RMII, SMII, or SS-SMII.
Sectionalization Select.
This pin selects sectionalization into separate ports.
0 = 1x8 ports,
1 = 2x4 ports
2
Revision Date: August 28, 2003
Document Number: 249241
Revision Number: 007
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