LAN9303I-ABZJ SMSC, LAN9303I-ABZJ Datasheet - Page 6
LAN9303I-ABZJ
Manufacturer Part Number
LAN9303I-ABZJ
Description
Ethernet ICs 3 Port 0/100 Ether Switch MII/RMII/Turb
Manufacturer
SMSC
Datasheet
1.LAN9303-ABZJ.pdf
(367 pages)
Specifications of LAN9303I-ABZJ
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8.4.6
8.4.7
8.5
8.5.1
8.5.2
8.5.3
Chapter 9 MII Data Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
9.1
9.1.1
9.1.2
9.1.3
Chapter 10 MII Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
10.1
10.2
10.2.1 Read Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
10.2.2 Write Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
10.3
10.3.1 EEPROM Loader PHY Register Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
10.4
10.4.1 Port 0 MAC Mode SMI Managed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
10.4.2 Port 0 MAC Mode I2C Managed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
10.4.3 Port 0 PHY Mode SMI Managed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
10.4.4 Port 0 PHY Mode I2C Managed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Chapter 11 General Purpose Timer & Free-Running Clock. . . . . . . . . . . . . . . . . . . . . . . . 131
11.1
11.2
Chapter 12 GPIO/LED Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
12.1
12.2
12.2.1 GPIO Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
12.3
12.3.1 LED Function Definitions when LED_FUN[1:0] = 00b, 01b, or 10b . . . . . . . . . . . . . . . . . . . . . . 134
12.3.2 LED Function Definitions when LED_FUN[1:0] = 11b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Chapter 13 Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
13.1
13.2
13.2.1 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
13.2.2 GPIO/LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Revision 1.4 (07-07-10)
8.5.2.1
9.1.2.1
9.1.2.2
9.1.2.3
9.1.2.4
9.1.2.5
9.1.3.1
9.1.3.2
9.1.3.3
9.1.3.4
9.1.3.5
10.2.1.1
12.2.1.1
13.2.1.1
13.2.1.2
13.2.1.3
13.2.2.1
I2C Slave Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Port 0 MII Data Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
SMI Slave Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
PHY Management Interface (PMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
MII Mode Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
General Purpose Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Free-Running Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
GPIO Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
LED Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Register Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
System Control and Status Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
EEPROM Loader Finished Wait-State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Reset Sequence and EEPROM Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
I2C Slave Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
I2C Slave Read Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
I2C Slave Write Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Port 0 MII MAC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Port 0 MII PHY Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Port 0 RMII PHY Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
I2C Slave Read Polling for Reset Complete ................................................................................................................................................. 119
Turbo Operation............................................................................................................................................................................................ 121
Clock Drive Strength ..................................................................................................................................................................................... 121
Signal Quality Error (SQE) Heartbeat Test ................................................................................................................................................... 121
Collision Test ................................................................................................................................................................................................ 122
Loopback ...................................................................................................................................................................................................... 122
Reference Clock Selection............................................................................................................................................................................ 122
Clock Drive Strength ..................................................................................................................................................................................... 123
Signal Quality Error (SQE) Heartbeat Test ................................................................................................................................................... 123
Collision Test ................................................................................................................................................................................................ 123
Loopback Mode ............................................................................................................................................................................................ 123
SMI Read Polling for Reset Complete .......................................................................................................................................................... 125
GPIO Interrupt Polarity.................................................................................................................................................................................. 133
Interrupt Configuration Register (IRQ_CFG) ................................................................................................................................................ 140
Interrupt Status Register (INT_STS)............................................................................................................................................................. 142
Interrupt Enable Register (INT_EN).............................................................................................................................................................. 143
General Purpose I/O Configuration Register (GPIO_CFG) .......................................................................................................................... 144
Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
DATASHEET
6
SMSC LAN9303/LAN9303i
Datasheet
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