Datasheet

SCANSTA101

SNLS057J –MAY 2002–REVISED APRIL 2013

www.ti.com

Table 6. MACRO STRUCTURE

Bit(s) Function

0x1F Compare

0x1E Use Mask / Compare full length of vector (not including header/trailer)

0x1D - 0x1B Post-shift TCK_SM Count

0x1A - 0x18 Pre-shift TCK_SM Count

0x17 Sync Bit Support Enable

0x16 Macro Structure Bit 8 Enable (Ignored for the shift macros with or without capture)

0x15 Macro Structure bit 7 Enable (Ignored for the shift macros with or without capture)

0x14 - 0x12 Header/Trailer Usage

0x11 Macro Type bit 1

0x10 Macro Type bit 0

0xF - 0x9 Last 7 TMS_SM bits

0x8 Presented during the falling edge of TCK_SM at terminal count during a Shift macro. Use in the same

manner as other TMS bits for State and BIST Macros.

0x7 Loop Bit if Macro type is Shift (for 1149.1 it would be a 0) or BIST

0x6 - 0x0 First 7 TMS_SM Bits (LSB is first bit to be shifted out of TMS_SM)

Table 7. HEADER/TRAILER USAGE

Bit 2 Bit 1 Bit 0 Function

0 0 0 Ignore Headers and Trailers

0 0 1 Use Instruction Header

0 1 0 Use Instruction Trailer

0 1 1 Use both Instruction Header and Trailer

1 0 0 Use Data Header

1 0 1 Use Data Trailer

1 1 0 Use both Data Header and Trailer

1 1 1 Reserved

Table 8. Macro Type bits 10 and 11

Bit 1 Bit 0 Function Function

0 0 BIST Macro Loop on loop bit for Vector count. No Data

0 1 Shift Macro Loop on loop bit for vector count. Read data from TDO_SM memory

1 0 Shift Macro with Capture Loop on loop bit for vector count. Read data from TDO_SM memory

1 1 State Macro Do not loop on loop bit of macro. No data to be shifted

Table 9. SEQUENCER STRUCTURE

Bit(s) Function

0x00 - 0x1F Sequence repeat count (up to 255)

0x20 - 0x2F Vector repeat count

0x30 - 0x3F Vector number

..x.. - ..x.. Repeat vector repeat count and vector number

0x3E0 - 0x3EF Vector repeat count (up to 255)

0x3F0 - 0x3FF Vector number (up to 63)

Product Folder Links: SCANSTA101