參數(shù)資料
型號: SCANSTA101
廠商: National Semiconductor Corporation
英文描述: RES 30K OHM 1/16W 0.1% 0402 SMD
中文描述: 低壓主STA的IEEE 1149.1標(biāo)準(zhǔn)
文件頁數(shù): 9/31頁
文件大小: 403K
代理商: SCANSTA101
TABLE 4. Memory/Register Address Map
(Continued)
Function
Macro 1
Macro 2
Macro 3 . . .
Macro 16
Sequencer Index
Sequencer
Scan Bridge Support Index
Scan Bridge Support
A4
1
A3
0
A2
1
A1
1
A0
0
Base Address
0 x 788
0 x 789
0 x 78A . . .
0 x 797
N/A
0 x 798
N/A
0 x 7B8
Long Word Index
0x0
0x1
0x2 . . .
0xF
N/A
0x0 - 0x1F
N/A
0x0 - 0x3F
Structure/Size
Tables 7, 8, 9
1
1
1
1
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
16-bit Register
Table 10
16-bit Register
Table 11
Note 5:
The TDI_SM LFSR result and seed registers require two sequential reads/writes for each register pair.
Note 6:
The index register is used to set the individual address pointers. Writine to the index register will set each of the individual address pointers (TDO_SM,
TDI_SM, Expected, and Mask). The individual address pointers will automatically increment with each long word read from TDI_SM or each long word written to the
TDO_SM, Expected, or Mask memory spaces.
Note 7:
The actual address is calculated from the base address of the memory area plus the content of its address pointer.
Note 8:
The upper two bytes of each vector is ignored. These have been inserted to make the space align on long word boundaries.
TABLE 5. Vector Structure
Bit(s)
0x00 - 0x1F
0x20 - 0x27
0x28 - 0x2E
0x2F
0x30 - 0x3F
Function
Length (maximum of 4G)
Macro Number (1 of 256) Room for scaleability
Reserved
Preloaded data / Load-on-the-fly (LotF)
Reserved
TABLE 6. Header/Trailer Structure
Bit(s)
0x00 - 0x1F
0x20 - 0x3FF
Function
32-bit count (Note 9)
124 bytes (992 bits) header/trailer data
Note 9:
Count must be greater than zero if the Header/Trailer Usage bits are not equal to "000" or "111".
TABLE 7. Macro Structure
Bit(s)
0x1F
0x1E
0x1D - 0x1B
0x1A - 0x18
0x17
0x16
0x15
0x14 - 0x12
0x11
0x10
0xF - 0x9
0x8
Function
Compare
Use Mask / Compare full length of vector (not including header/trailer)
Post-shift TCK_SM Count
Pre-shift TCK_SM Count
Sync Bit Support Enable
Macro Structure Bit 8 Enable (Ignored for the shift macros with or without capture)
Macro Structure bit 7 Enable (Ignored for the shift macros with or without capture)
Header/Trailer Usage
Macro Type bit 1
Macro Type bit 0
Last 7 TMS_SM bits
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.
Loop Bit if Macro type is Shift (for 1149.1 it would be a 0) or BIST
First 7 TMS_SM Bits (LSB is first bit to be shifted out of TMS_SM)
0x7
0x6 - 0x0
TABLE 8. Header / Trailer Usage
Bit 2
0
Bit 1
0
Bit 0
0
Function
Ignore Headers and Trailers
S
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