3X38FTR Datasheet, PDF (45/64 Pages) Agere Systems – OCTAL-FET (Fast Ethernet Transceiver) for 10Base-T/100Base-TX/FX

Preliminary Data Sheet
September 2000
3X38FTR 208-Pin SQFP
OCTAL-FET for 10Base-T/100Base-TX/FX
MII Station Management (continued)
PHY_ADD[2:0]
These signals set the management addresses and are decoded as follows.
Table 19. PHY Addresses
PHY_ADD[2:0]
000
001
010
011
100
101
110
111
Port 0
0
8
16
24
6
12
18
0
Port 1
1
9
17
25
7
13
19
0
Port 2
2
10
18
26
8
14
20
0
Port 3
3
11
19
27
9
15
21
0
Port 4
4
12
20
28
10
16
22
0
Port 5
5
13
21
29
11
17
23
0
Port 6
6
14
22
30
12
18
24
0
Port 7
7
15
23
31
13
19
25
0
Unmanaged Operations
The 3X38 allows the user to set some of the station management functions during powerup or reset by strapping
outputs high or low through weak resistors (10 kΩ). Table 20 shows the functions and their associated output pins.
For detailed information on the functions of these output pins, refer to the section on management registers
described earlier in this data sheet. Also, information on how these output pins should be strapped is discussed in
the pin descriptions section (Table 3 through Table 7).
Table 20. Output Pins
Function (Register/Bit)
PHY_ADD[2:0]
NO_LP
SPEED
CARIN_EN
SCRAM_DESC_BYPASS
STRETCH_LED
FULL_DUP
CRS_SEL
ISOLATE_MODE
FX_MODE_EN[7:0]
RESERVED
AUTO_EN
LIFT_EN
BLINK_LED_MODE
LED_MODE[1:0]
RMII_MODE
Pin
SPEEDLED_[2:0]
SPEEDLED_3
FDUPLED_5
ACTLED_5
ACTLED_3
ACTLED_0
FDUPLED_1
FDUPLED_0
FDUPLED_2
LINKLED[7:0]
FDUPLED_3
ACTLED_4
ACTLED_2
ACTLED_1
SPEEDLED[5:4]
FDUPLED_4
Internal Pull-Up/Pull-Down
50 kΩ down
50 kΩ down
50 kΩ up
50 kΩ down
50 kΩ down
50 kΩ up
50 kΩ up
50 kΩ down
50 kΩ down
50 kΩ down
50 kΩ down
50 kΩ down
50 kΩ up
50 kΩ down
50 kΩ down
50 kΩ down
Lucent Technologies Inc.
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