Typical Application; Figure 2: Typical Bcm5754-Based Nic Board Block Diagram; Table 5: Bcm5754 Nic Part Component Breakdown - Broadcom BCM5722 Programmer's Manual

Programmer's Guide
10/15/07
T A
YPICAL PPLICATION
Figure 2 shows a typical BCM5754-based NIC board layout.
1000BASE-T Link Status LED
100BASE-T Link Status LED
10BASE-T Link Status LED
Activity LED
RJ-45
Part Component Description
RJ-45 The physical connector for category 5 twisted-pair cabling.
Magnetics The pulse H5007 isolates the physical layer from voltage events such as sags, swells, and transients.
The magnetics module also compensates for impedance mismatches between the cabling and
physical layer.
Clock source A crystal oscillator generates a 25-MHz clocking signal.
Voltage regulators Internal voltage regulator controllers provide control for external PNP controlled supplies for 2.5V and
1.2V.
MAC The BCM5754 MAC
PCIe This specification defines a protocol for bus master controller and target data movement. The MAC is
a bus master controller and may move data without CPU intervention.
EEPROM/Flash The non-volatile storage for firmware bootcode, MAC address, VPD, and PXE code. The NVRAM is
read after the MAC is reset.
Document 5722-PG101-R
25-MHz
Crystal
Magnetic
BCM5754
MEDIA

Figure 2: Typical BCM5754-Based NIC Board Block Diagram

Table 5: BCM5754 NIC Part Component Breakdown

Bro adco m Co rp or atio n
PNP for 1.2V
Regulator
64-KB Serial EEPROM or Flash
BCM5754, BCM5754M, BCM5787, and BCM5787M MACs
BCM5722
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