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TNETX3150GGP Fiches technique(PDF) 63 Page - Texas Instruments |
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TNETX3150GGP Fiches technique(HTML) 63 Page - Texas Instruments |
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63 / 113 page ![]() TNETX3150/TNETX3150A ThunderSWITCH™ 15-PORT 10-/100-MBIT/S ETHERNET™ SWITCH SPWS027F – FEBRUARY 1997 – REVISED SEPTEMBER 1997 63 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 supported JTAG instructions Mandatory: EXTEST, BYPASS and SAMPLE / PRELOAD Optional public: HIGHZ and IDCODE The opcodes for the various instructions (4-bit instruction register) are listed in Table 11. Table 11. Opcodes for JTAG Instructions INSTRUCTION TYPE INSTRUCTION NAME TNETX3150 JTAG OPCODE TNETX3150A JTAG OPCODE Mandatory EXTEST 0000 000000 Mandatory SAMPLE/PRELOAD 0001 000001 Optional IDCODE 0100 000100 Optional HIGHZ 0101 000101 Mandatory BYPASS 1111 111111 The IDCODE for the TNETX3150/TNETX3150A is shown in Table 12. Table 12. IDCODE Code VARIANT PART NUMBER MANUFACTURE LEAST-SIGNIFICANT BIT bit 31 bit 28 bit 27 bit 12 bit 11 bit1 bit 0 0000 0000000000111000 00000010111 1 |
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