LAN8187-JT SMSC, LAN8187-JT Datasheet - Page 47

• Manufacturer Part Number: LAN8187-JT
• Description: Ethernet ICs HiPerfrm Ethrnt PHY
• Manufacturer: SMSC
• Type: MII/RMII Ethernet Transceiverr

Specifications of LAN8187-JT

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Transceivers
• Number Of Transceivers: 1
• Standard Supported: 802.3ab
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 1.8 V
• Supply Current (max): 39 mA, 81.6 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

±15kV ESD Protected MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX & flexPWR
Datasheet
SMSC LAN8187/LAN8187i
ADDRESS
ADDRESS
ADDRESS
26.15:0
27.10:5
28.15:0
27.3:0
27.15
27.14
27.13
27.12
27:11
27.4
AMDIX_ENABLE
AMDIXIOCTRL
Sym_Err_Cnt
CH_SELECT
Reserved
Reserved
Reserved
Reserved
SQEOFF
NAME
NAME
NAME
XPOL
Table 5.42 Register 28 - Special Internal Testability Controls
Table 5.41 Register 27 - Special Control/Status Indications
Table 5.40 Register 26 - Symbol Error Counter
100Base-TX receiver-based error register that
increments when an invalid code symbol is received
including IDLE symbols. The counter is incremented
only once per packet, even when the received packet
contains more than one symbol error. The 16-bit
register counts up to 65,536 (2
if incremented beyond that value. This register is
cleared on reset, but is not cleared by reading the
register. It does not increment in 10Base-T mode.
Enables the external AMDIX and CH_SELECT pins
0 - External pins AMDIX_EN and CH_SELECT control
1 - Internal bits 27.14 and 27.13 control the AMDIX.
Note:
HP Auto-MDIX control
0 - Auto-MDIX disabled (use 27.13 to control channel)
1 - Auto-MDIX enable
Note:
Manual Channel Select
0 - MDI -TX transmits RX receives
1 - MDIX -TX receives RX transmits
Note:
Write as 0. Ignore on read.
Disable the SQE (Signal Quality Error) test
(Heartbeat):
0 - SQE test is enabled.
1 - SQE test is disabled.
Write as 0. Ignore on read.
Polarity state of the 10Base-T:
0 - Normal polarity
1 - Reversed polarity
Reserved
Do not write to this register. Ignore on read.
the AMDIX.
Please see
on page 30
This bit can only be used if 27.15 is a 1.
This bit can only be used if 27.15 is a 1 and
27.14 is a 0.
DATASHEET
DESCRIPTION
DESCRIPTION
DESCRIPTION
47
Table 4.3, “Auto-MDIX Control,”
®
Technology
16
) and rolls over to 0
MODE
MODE
MODE
NASR
RW,
RW
RW
RW
RW
RW
Revision 1.7 (03-04-11)
RO
RO
RW
RO
DEFAULT
DEFAULT
DEFAULT
000000
XXXXb
N/A
0
0
0
0
0
0
0