lxt971a Intel Corporation, lxt971a Datasheet - Page 19

• Manufacturer Part Number: lxt971a
• Description: 3.3v Dual-speed Fast Ethernet Phy Transceiver
• Manufacturer: Intel Corporation

Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
Table 5.
Table 6.
Table 7.
LXT971A Power Supply Signal Descriptions
LXT971A JTAG Test Signal Descriptions
LXT971A LED Signal Descriptions
A6
D4, E3
E4, F3
F4, C6,
C3, G7,
G8
E5, D5
G3, G4
1. Type Column Coding: I = Input, O = Output, A = Analog, OD = Open Drain.
2. If JTAG port is not used, these pins do not need to be terminated.
1. Type Column Coding: I = Input, O = Output, A = Analog, OD = Open Drain.
2. Pull-up/pull-down resistors of 10 k can be implemented if LEDs are used in the design.
PBGA
PBGA
PBGA
Pin#
Pin#
Pin#
G5
G6
F5
F6
H6
E6
F7
F8
51
7, 11, 18,
25, 34,
35, 41,
50, 61
8, 40
21, 22
LQFP
Pin#
LQFP
LQFP
Pin#
Pin#
27
28
29
30
31
38
37
36
TDI
TDO
TMS
TCK
TRST
VCCD
GND
VCCIO
VCCA
Symbol
LED/CFG1
LED/CFG2
LED/CFG3
Symbol
2
2
2
2
Symbol
2
Type
LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Type
O
–
–
–
–
I
I
I
I
Type
I/O
1
1
Digital Power. Requires a 3.3V power supply.
Ground.
MII Power. Requires either a 3.3V or a 2.5V supply. Must
be supplied from the same source used to power the MAC
on the other side of the MII.
Analog Power. Requires a 3.3V power supply.
Test Data Input. Test data sampled with respect to the
rising edge of TCK.
Test Data Output. Test data driven with respect to the
falling edge of TCK.
Test Mode Select.
Test Clock. Test clock input sourced by ATE.
Test Reset. Test reset input sourced by ATE.
LED Drivers 1-3. These pins drive LED indicators. Each
LED can display one of several available status
conditions as selected by the LED Configuration Register
(refer to
Configuration Inputs 1-3. These pins also provide initial
configuration settings (refer to
details).
Table 56 on page 85
Signal Description
Signal Description
Signal Description
for details).
Table 9 on page 30
for
19