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LAN9221 Datasheet(PDF) 5 Page - SMSC Corporation

Part # LAN9221
Description  High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
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LAN9221 Datasheet(HTML) 5 Page - SMSC Corporation

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High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
Datasheet
SMSC LAN9221/LAN9221i
5
Revision 2.6 (12-04-08)
DATASHEET
5.3.3
INT_STS—Interrupt Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
5.3.4
INT_EN—Interrupt Enable Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5.3.5
BYTE_TEST—Byte Order Test Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
5.3.6
FIFO_INT—FIFO Level Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
5.3.7
RX_CFG—Receive Configuration Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
5.3.8
TX_CFG—Transmit Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
5.3.9
HW_CFG—Hardware Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
5.3.10
RX_DP_CTRL—Receive Datapath Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
5.3.11
RX_FIFO_INF—Receive FIFO Information Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
5.3.12
TX_FIFO_INF—Transmit FIFO Information Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
5.3.13
PMT_CTRL— Power Management Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.3.14
GPIO_CFG—General Purpose IO Configuration Register . . . . . . . . . . . . . . . . . . . . . . . 96
5.3.15
GPT_CFG-General Purpose Timer Configuration Register . . . . . . . . . . . . . . . . . . . . . . 97
5.3.16
GPT_CNT-General Purpose Timer Current Count Register . . . . . . . . . . . . . . . . . . . . . . 98
5.3.17
WORD_SWAP—Word Swap Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
5.3.18
FREE_RUN—Free-Run 25MHz Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
5.3.19
RX_DROP– Receiver Dropped Frames Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
5.3.20
MAC_CSR_CMD – MAC CSR Synchronizer Command Register . . . . . . . . . . . . . . . . 100
5.3.21
MAC_CSR_DATA – MAC CSR Synchronizer Data Register . . . . . . . . . . . . . . . . . . . . 100
5.3.22
AFC_CFG – Automatic Flow Control Configuration Register . . . . . . . . . . . . . . . . . . . . 101
5.3.23
E2P_CMD – EEPROM Command Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
5.3.24
E2P_DATA – EEPROM Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
5.4
MAC Control and Status Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
5.4.1
MAC_CR—MAC Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
5.4.2
ADDRH—MAC Address High Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
5.4.3
ADDRL—MAC Address Low Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
5.4.4
HASHH—Multicast Hash Table High Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.4.5
HASHL—Multicast Hash Table Low Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.4.6
MII_ACC—MII Access Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
5.4.7
MII_DATA—MII Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
5.4.8
FLOW—Flow Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
5.4.9
VLAN1—VLAN1 Tag Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
5.4.10
VLAN2—VLAN2 Tag Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
5.4.11
WUFF—Wake-up Frame Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
5.4.12
WUCSR—Wake-up Control and Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
5.4.13
COE_CR—Checksum Offload Engine Control Register . . . . . . . . . . . . . . . . . . . . . . . . 117
5.5
PHY Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
5.5.1
Basic Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
5.5.2
Basic Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
5.5.3
PHY Identifier 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
5.5.4
PHY Identifier 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
5.5.5
Auto-negotiation Advertisement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
5.5.6
Auto-negotiation Link Partner Ability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
5.5.7
Auto-negotiation Expansion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
5.5.8
Mode Control/Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
5.5.9
Special Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
5.5.10
Special Control/Status Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
5.5.11
Interrupt Source Flag. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
5.5.12
Interrupt Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
5.5.13
PHY Special Control/Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Chapter 6 Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
6.1
Equivalent Test Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
6.2
Host Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
6.2.1
Special Restrictions on Back-to-Back Write/Read Cycles . . . . . . . . . . . . . . . . . . . . . . . 129


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