參數(shù)資料
型號(hào): ISPGDX80VA-5T100
廠商: LATTICE SEMICONDUCTOR CORP
元件分類: PLD
英文描述: In-System Programmable 3.3V Generic Digital CrosspointTM
中文描述: EE PLD, 5 ns, PQFP100
封裝: TQFP-100
文件頁(yè)數(shù): 21/27頁(yè)
文件大小: 346K
代理商: ISPGDX80VA-5T100
21
Specifications
ispGDX80VA
Boundary Scan
The ispGDXVA devices provide IEEE1149.1a test capa-
bility and ISP programming through a standard Boundary
Scan Test Access Port (TAP) interface.
The boundary scan circuitry on the ispGDXVA Family
operates independently of the programmed pattern. This
allows customers using boundary scan test to have full
test capability with only a single BSDL file.
The ispGDXVA devices are identified by the 32-bit JTAG
IDCODE register. The device ID assignments are listed
in Table 4.
Table 3. I/O Shift Register Order
Figure 10. Boundary Scan Register Circuit for I/O Pins
Normal
Function
OE
EXTEST
Update DR
SCANOUT
(to next cell)
Clock DR
SCANIN
(from previous
cell
Shift DR
Normal
Function
TOE
D
Q
D
Q
D
Q
D
Q
D
Q
I/O Pin
Reset
BSCAN
Registers
BSCAN
Latches
HIGHZ
0
1
0
1
PROG_MODE
EXTEST
I/O Shift Reg Order/ispGDXVA
ispGDX80VA
TDI, TOE,
RESET
, Y1, Y0, I/O B10 .. B19, I/O C0 .. C19, I/O D0 .. D9, I/O B9 .. B0, I/O A19.. A0,
I/O D19 .. D10, TDO
I/O SHIFT REGISTER ORDER
DEVICE
Table 4. ispGDX80VA Device ID Codes
ID Code/GDX80VA
ispGDX80VA
0001, 0000, 0011, 0101, 0000, 0000, 0100, 0011
32-BIT BOUNDARY SCAN ID CODE
DEVICE
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