Datasheet

Hi-Speed USB 2.0 to 10/100/1000 Ethernet Controller
Datasheet
Revision 1.0 (11-01-10) 10 SMSC LAN7500/LAN7500i
DATASHEET
The implemented IEEE 1149.1 instructions and their op codes are shown in Ta bl e 1. 1 .
Note: All digital I/O pins support IEEE 1149.1 operation. Analog pins and the XO pin do not support
IEEE 1149.1 operation.
1.1.11 Test Features
Read/Write access to internal SRAMs is provided via the devices registers. JTAG based USB BIST is
available.
1.1.12 System Software
LAN7500/LAN7500i software drivers are available for the following operating systems:
 Windows XP/ Vista/ Windows 7
 Win CE
 Linux
 MAC OS
 DOS ODI
In addition, an EEPROM programming utility is available for configuring the external EEPROM. PXE
Support is also available.
Table 1.1 IEEE 1149.1 Op Codes
INSTRUCTION OP CODE COMMENT
Bypass 111 Mandatory Instruction
Sample/Preload 010 Mandatory Instruction
EXTEST 000 Mandatory Instruction
Clamp 011 Optional Instruction
HIGHZ 100 Optional Instruction
IDCODE 001 Optional Instruction