dp83848qsqx/nopb National Semiconductor Corporation, dp83848qsqx/nopb Datasheet - Page 4

• Manufacturer Part Number: dp83848qsqx/nopb
• Description: Phyter Extended Temperature Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver
• Manufacturer: National Semiconductor Corporation

www.national.com
11.0 Design Guidelines ....................................................................................................................... 28
12.0 Reset Operation .......................................................................................................................... 31
13.0 Register Block ............................................................................................................................. 32
14.0 Absolute Maximum Ratings ........................................................................................................... 51
15.0 AC and DC Specifications ............................................................................................................. 51
10.3 10BASE-T TRANSCEIVER MODULE ..................................................................................... 25
11.1 TPI NETWORK CIRCUIT ...................................................................................................... 28
11.2 ESD PROTECTION .............................................................................................................. 28
11.3 CLOCK IN (X1) REQUIREMENTS .......................................................................................... 28
11.4 POWER FEEDBACK CIRCUIT .............................................................................................. 29
11.5 ENERGY DETECT MODE ..................................................................................................... 30
12.1 HARDWARE RESET ............................................................................................................ 31
12.2 SOFTWARE RESET ............................................................................................................. 31
13.1 REGISTER DEFINITION ....................................................................................................... 35
13.2 EXTENDED REGISTERS ...................................................................................................... 42
15.1 DC SPECIFICATIONS .......................................................................................................... 51
15.2 AC SPECIFICATIONS .......................................................................................................... 53
10.3.1 Operational Modes ..................................................................................................... 25
10.3.2 Smart Squelch ........................................................................................................... 26
10.3.3 Collision Detection and SQE ........................................................................................ 26
10.3.4 Carrier Sense ............................................................................................................. 26
10.3.5 Normal Link Pulse Detection/Generation ........................................................................ 26
10.3.6 Jabber Function ......................................................................................................... 26
10.3.7 Automatic Link Polarity Detection and Correction ............................................................ 27
10.3.8 Transmit and Receive Filtering ..................................................................................... 27
10.3.9 Transmitter ................................................................................................................ 27
10.3.10 Receiver .................................................................................................................. 27
13.1.1 Basic Mode Control Register (BMCR) ............................................................................ 36
13.1.2 Basic Mode Status Register (BMSR) ............................................................................. 37
13.1.3 PHY Identifier Register #1 (PHYIDR1) ........................................................................... 38
13.1.4 PHY Identifier Register #2 (PHYIDR2) ........................................................................... 38
13.1.5 Auto-Negotiation Advertisement Register (ANAR) ........................................................... 38
13.1.6 Auto-Negotiation Link Partner Ability Register (ANLPAR) (BASE Page) ............................. 39
13.1.7 Auto-Negotiation Link Partner Ability Register (ANLPAR) (Next Page) ............................... 40
13.1.8 Auto-Negotiate Expansion Register (ANER) ................................................................... 41
13.1.9 Auto-Negotiation Next Page Transmit Register (ANNPTR) ............................................... 41
13.2.1 PHY Status Register (PHYSTS) ................................................................................... 42
13.2.2 False Carrier Sense Counter Register (FCSCR) ............................................................. 44
13.2.3 Receiver Error Counter Register (RECR) ....................................................................... 44
13.2.4 100 Mb/s PCS Configuration and Status Register (PCSR) ................................................ 45
13.2.5 RMII and Bypass Register (RBR) .................................................................................. 45
13.2.6 LED Direct Control Register (LEDCR) ........................................................................... 46
13.2.7 PHY Control Register (PHYCR) .................................................................................... 46
13.2.8 10 Base-T Status/Control Register (10BTSCR) ............................................................... 47
13.2.9 CD Test and BIST Extensions Register (CDCTRL1) ........................................................ 49
13.2.10 Energy Detect Control (EDCR) ................................................................................... 49
15.2.1 Power Up Timing ........................................................................................................ 53
15.2.2 Reset Timing ............................................................................................................. 54
15.2.3 MII Serial Management Timing ..................................................................................... 55
15.2.4 100 Mb/s MII Transmit Timing ...................................................................................... 55
15.2.5 100 Mb/s MII Receive Timing ....................................................................................... 56
15.2.6 100BASE-TX and 100BASE-FX MII Transmit Packet Latency Timing ................................ 56
15.2.7 100BASE-TX Transmit Packet Deassertion Timing .......................................................... 57
15.2.8 100BASE-TX Transmit Timing (t
15.2.9 100BASE-TX Receive Packet Latency Timing ................................................................ 58
15.2.10 100BASE-TX Receive Packet Deassertion Timing ........................................................ 58
15.2.11 10 Mb/s MII Transmit Timing ...................................................................................... 59
15.2.12 10 Mb/s MII Receive Timing ....................................................................................... 59
15.2.13 10 Mb/s Serial Mode Transmit Timing .......................................................................... 60
15.2.14 10 Mb/s Serial Mode Receive Timing .......................................................................... 60
15.2.15 10BASE-T Transmit Timing (Start of Packet) ................................................................ 61
15.2.16 10BASE-T Transmit Timing (End of Packet) ................................................................. 61
15.2.17 10BASE-T Receive Timing (Start of Packet) ................................................................. 62
15.2.18 10BASE-T Receive Timing (End of Packet) .................................................................. 62
15.2.19 10 Mb/s Heartbeat Timing ......................................................................................... 63
15.2.20 10 Mb/s Jabber Timing ............................................................................................. 63
R/F
& Jitter) .................................................................... 57
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