E-STE100P STMicroelectronics, E-STE100P Datasheet - Page 19

• Manufacturer Part Number: E-STE100P
• Description: IC TRANSCEIVER 3.3V 64 TQFP
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of E-STE100P

• Number Of Drivers/receivers: 1/1
• Protocol: MII
• Voltage - Supply: 3.15 V ~ 3.45 V
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Number Of Receivers: 1
• Data Rate: 10/100Mbps
• Operating Supply Voltage (typ): 3.3V
• Package Type: TQFP
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 3.45V
• Operating Supply Voltage (min): 3.15V
• Mounting: Surface Mount
• Pin Count: 64
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2143; STE100P

Note:
The above LED connections are recommended for setting a Logic Level 1 or Logic Level 0 on the
STE100P LED/PHY Address pins, for determining PHY address.
7.11 Preamble Suppression
Preamble suppression mode in the STEPHY1 is indicated by a one in bit six of the PR1 Register. If it is
determined that all PHY devices in the system support preamble suppression, then a preamble is not nec-
essary for each management transaction. The first transaction following power-up/hardware reset re-
quires 32 bits of preamble. The full 32 bit preamble is not required for each additional transaction. The
STEPHY1 will respond to management accesses without preamble, but a minimum of one idle bit between
management transactions is required as specified in IEEE 802.3u.
7.12 Remote Fault
The remote fault function indicates to a link partner that a fault condition has occurred by using the Remote
Fault bit, which is encoded in bit 13 of the Link Code Word. A local device indicates to its link partner that
it has found a fault by setting the Remote Fault bit in the Auto-Negotiation register to logic one and rene-
gotiating with the link partner. The Remote Fault bit remains at logic one until successful negotiation with
the Link Code Word occurs. The bit will then return to 0. When the message is sent that the Remote Fault
bit is set to logic one, the device will set the Remote Fault bit in the MII to logic one if the management
function is present.
7.13 Transmit Isolation
Figure 7.
RxD
TxD
4/5
4/5
STA/STE
MII
STEPHY1
TX(100MHz)/TP(10MHz)
Ethernet
ttp
tpn
STE100P
19/31