lxt9785 Intel Corporation, lxt9785 Datasheet - Page 46

• Manufacturer Part Number: lxt9785
• Description: Advanced 8-port 10/100 Mbps Phy Transceivers
• Manufacturer: Intel Corporation

LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
48
Table 14. Intel
Table 15. Intel
65, 78, 184,
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 H/W Power-Down mode. If a pin is an output or an I/O, the IP/ID
3. The LED outputs are three-stated in H/W Power-Down mode and during H/W reset.
4.
18, 29, 47,
1. Type Column Coding: I = Input, O = Output, OD = Open Drain output, ST = Schmitt Triggered input, TS =
PQFP
103, 116,
117, 130,
131, 144,
145, 158
56, 208
98, 164
185
186
187
189
190
191
192
193
194
Pin/Ball Designation
PQFP
Three-State-able output, SL = Slew-rate Limited output, IP = weak Internal Pull-up, ID = weak Internal pull-
Down.
resistors are also disabled when the output is enabled.
Three-State-able output, SL = Slew-rate Limited output, IP = weak Internal Pull-up, ID = weak Internal pull-
Down.
Designation
196
®
®
Pin/Ball
LXT9785/LXT9785E LED Signal Descriptions – PQFP (Sheet 2 of 2)
LXT9785/LXT9785E Power Supply Signal Descriptions – PQFP (Sheet 1 of 2)
PBGA
G15,
H15,
H16,
F17,
J15,
J16,
H17
G17
F16
G13, J14,
P11, P12
C1, C11,
N13, P4,
P9, P10,
A2, A8,
L13, L5
P7, P8,
PBGA
F5, J5
D14
Symbol
LED5_1
LED5_2
LED5_3
LED6_1
LED6_2
LED6_3
LED7_1
LED7_2
LED7_3
VCCPECL
Symbol
VCCIO
VCCD
VCCR
OD, TS, SL,
OD, TS, SL,
OD, TS, SL,
Type
Type
IP
IP
IP
-
-
-
-
1
Signal Description
Digital Power Supply - Core.
+2.5 V supply for core digital circuits.
Digital Power Supply - I/O Ring.
+2.5/3.3 V supply for digital I/O circuits. The digital
input circuits running off of this rail, having a TTL-level
threshold and over-voltage protection, may be
interfaced with 3.3/5.0 V, when the IO supply is 3.3 V,
and 2.5/3.3/5.0 V when 2.5 V.
Digital Power Supply - PECL Signal Detect Inputs.
+2.5/3.3 V supply for PECL Signal Detect input
circuits. If Fiber Mode is not used, tie these pins to
GNDPECL to save power.
Analog Power Supply - Receive.
+2.5 V supply for all analog receive circuits.
Signal Description
Port 5 LED Drivers 1-3.
These pins drive LED indicators for Port 5. Each LED
can display one of several available status conditions
as selected by the LED Configuration Register (refer
to
20, Hex 14)” on page 213
Port 6 LED Drivers 1-3.
These pins drive LED indicators for Port 6. Each LED
can display one of several available status conditions
as selected by the LED Configuration Register (refer
to
20, Hex 14)” on page 213
Port 7 LED Drivers 1-3.
These pins drive LED indicators for Port 7. Each LED
can display one of several available status conditions
as selected by the LED Configuration Register (refer
to
20, Hex 14)” on page 213
Table 96, “LED Configuration Register (Address
Table 96, “LED Configuration Register (Address
Table 96, “LED Configuration Register (Address
2,3
Revision Date: August 28, 2003
for details).
for details).
for details).
Document Number: 249241
Revision Number: 007
Datasheet