DP83843BVJE Datasheet, PDF (12/87 Pages) National Semiconductor (TI) – PHYTER

1.0 Pin Descriptions (Continued)
1.8 Power And Ground Pins
The power (V_CC) and ground (GND) pins of the DP83843
are grouped in pairs into three categories--TTL/CMOS
Input pairs, Transmit/Receive supply pairs, and Internal
supply pairs. This grouping allows for optimizing the layout
and filtering of the power and ground supplies to this
device.
Signal Name
Pin #
Description
TTL/CMOS INPUT/OUTPUT SUPPLY PAIRS
IO_VDD1
6
TTL Input/Output Supply #1
IO_VSS1
7
IO_VDD2
16
TTL Input/Output Supply #2
IO_VSS2
17
IO_VDD3
26
TTL Input /Output Supply #3
IO_VSS3
27
IO_VSS4
32
TTL Input/Output Supply #4
IO_VDD5
36
TTL Input/ Output Supply #5
IO_VSS5
37
PCS_VDD
10
Physical Coding Sublayer Supply
PCS_VSS
11
TRANSMIT/RECEIVE SUPPLY PAIRS
AUIFX_VDD
46
AUI Power Supply
AUIFX_GND
45
TR_AVDD
79
10 Mb/s Supply
TR_AGND
80
TW_AVDD
68
100 Mb/s Power Supply
TW_AGND
64
CD_VDD0
72
Common Driver Supply
CD_GND0
71
CD_VDD1
76
Common Driver Supply
CD_GND1
75
INTERNAL SUPPLY PAIRS
CP_AVDD
52
CRM/CGM Supply
CP_AGND
51
CPTW_DVDD
54
CRM/CGM Supply
CPTW_DVSS
53
ATP_GND
57
100BASE-T PMD Supply
SUB_GND1,
70
100BASE-T PMD Supply
SUB_GND2
77
1.9 Special Connect Pins
Signal Name
NC
Type
Pin #
Description
2,55,56, NO CONNECT: These pins are reserved for future use. Leave them unconnected
58,59, (floating).
62
12
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