TMC2072_07 SMSC [SMSC Corporation], TMC2072_07 Datasheet - Page 24

• Manufacturer Part Number: TMC2072_07
• Manufacturer: SMSC [SMSC Corporation]

1.5.19 Optical Transceiver Mode
1.5.20 TXEN Polarity Select
1.5.21 Extension Timer Setting 1
1.5.22 Test Pins
Revision 0.1 (06-07-07)
(nOPMD: Pin)
Selects the output mode of the sending-enable; nOPMD = H makes the optical transceiver mode
unavailable and allows the TXEN and TXEN2 output pins to function as “sending-enable”. Setting nOPMD
= L allows TXEN and TXEN2 output pins to function as “sending-enable and sending pulse” to be able to
be directly connected to the TTL input pin of the optical transceiver.
(TXENPOL: Pin)
Selects the output polarities of the TXEN and TXEN2 signals. TXENPOL = L selects negative logic and
TXENPOL = H selects positive logic.
(ET1: Pin/Register)
Refer to section 2.13 - HUB Function for operational details.
(nTEST[3:0], nTMODE: Pin)
All pins must be connected to VDD.
DATASHEET
Page 24
Peripheral Mode CircLink™ Controller
SMSC TMC2072
Datasheet