FLLXT1000BA.C4QE000 Intel, FLLXT1000BA.C4QE000 Datasheet - Page 38
FLLXT1000BA.C4QE000
Manufacturer Part Number
FLLXT1000BA.C4QE000
Description
Manufacturer
Intel
Datasheet
1.FLLXT1000BA.C4QE000.pdf
(106 pages)
Specifications of FLLXT1000BA.C4QE000
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LXT1000 — Gigabit Ethernet Transceiver
2.4
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
38
xxxx
1. The JEDEC ID is an 8-bit identifier. And the MSB is for parity and is ignored. Intel’s JEDEC ID is FE (1111 1110) which
Version
becomes 111 1110.
Table 19. JTAG ID Register
31:28
3E8
Initialization
Power-Up
At power-up, the LXT1000 initializes all internal PLLs and analog functions and reads its
hardware configuration balls. Internal logic holds the device in reset for approximately 300 ms
after VCC reaches 3.xV.
Hardware Reset
The LXT1000 does not require an external hardware reset circuit. The device can be reset by
pulling the RESET ball Low. Hardware reset causes the same re-initialization and reconfiguration
function that occurs at power-up. TX_CLK and RX_CLK are not available and the MII registers
are not accessible until the external reset function completes.
Software Reset
Software reset, which is invoked by setting bit 0.15 = 1 causes all internal digital state machines to
reset and causes the external hardware configuration to be re-read, but does not cause re-
initialization of the PLLs or other analog functions. RX_CLK and TX_CLK, and the MII registers
continue to be available.
Hardware Power-Down
Hardware power-down mode is entered when PWRDWN is High. In power-down mode, all
functions are disabled. When the LXT1000 exits power-down mode (PWRDWN is Low), it re-
initializes all analog functions and configuration settings.
Software Power-Down
Software power-down is entered by setting 0.11 = 1. In software power-down, all functions and
RX_CLK and TX_CLK are disabled except for the MII Registers and MDIO interface. When the
LXT1000 exits software power-down (0.11 = 0), it re-initializes all analog functions, but retains its
previous configuration settings.
Part ID
27:12
0000
Table 20
JEDEC Continuation Characters
summarizes the various modes
11:8
111 1110
JEDEC ID
7:1
1
1
Document #: 249276
Rev. Date: 07/20/01
Reserved
Revision #: 002
Datasheet
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