LAN8820 Datasheet, PDF (78/83 Pages) Microchip Technology – RGMII 10/100/1000 Ethernet Transceiver

LAN8820/LAN8820I
APPENDIX A: DATA SHEET REVISION HISTORY
TABLE 6-2: REVISION HISTORY
Revision Level & Date
DS00001871B
(10-13-15)
Section/Figure/Entry
Correction
Trademark and Sales office listings updated.
DS00001871A (12-09-14)
Rev. 1.1 (06-03-13)
All: (Cover, Figure 2-1,
Table 2-3, Table 2-6,
Table 2-8, Table 3-4,
Section 4.3.2, Section 5.6)
Table 2-3
Section 4.2.10
Section 4.2.16
Section 5.6
Section 3.6.1, "Hardware
Reset (nRESET)," on
page 22
Section 5.5.3, "Power-On
Hardware Reset Timing," on
page 67
Section 4.2.4, "PHY
Identifier 2 Register," on
page 38
Table 2-3, “LED &
Configuration Pins,” on
page 7, Table 3-4,
“Configuration Straps,” on
page 24, Note 4-8 on
page 49, FIGURE 3-3:
RGMII Modes of Operation
on page 19
Section 5.3, "Power
Consumption," on page 61
Table 2-3, “LED &
Configuration Pins,” on
page 7, Table 2-6,
“Miscellaneous Pins,” on
page 9, Table 3-4,
“Configuration Straps,” on
page 24, Section 5.6, "Clock
Circuit," on page 75
Removed references to 125MHz single-ended
clock support and the REF_SEL configuration
strap.
Updated CONFIG3 pin description to correct list of
connection pins.
Updated bit 11 description (active only when
Manual Config. Enable is 1).
• Added note to MOD bits: “The MOD bits
should not be modified and must be preserved
when writing to this register.”
• Updated bits 8:3 description to indicate they
must be written with specific values.
Updated second sentence to “If the single-ended
clock oscillator method is implemented, XO should
be left unconnected and XI should be driven with a
nominal 0V-VDD25IO clock signal.”
Updated section with additional details on power-
up sequencing requirements.
Updated section with additional details on power-
up sequencing requirements. Section title and
included figures/tables updated.
Corrected bits 9:4 default values from 0Ch to 0Eh
Updated RGMII_ID_MODE description to correct
polarity: 1=delay enabled, 0=delay disabled.
Updated power consumption numbers
Updated XI and REFCLK_SEL definitions/info for
clarity.
DS00001871B-page 78
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