TSI148-133CL IDT, Integrated Device Technology Inc, TSI148-133CL Datasheet - Page 138

• Manufacturer Part Number: TSI148-133CL
• Description: IC PCI-VME BRIDGE 456PBGA
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: Tsi148&Trade;r

Specifications of TSI148-133CL

• Applications: PCI-to-VME Bridge
• Interface: PCI
• Voltage - Supply: 3.3V
• Package / Case: 456-PBGA
• Mounting Type: Surface Mount
• Package Type: BGA
• Rad Hardened: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 800-1906

7. JTAG Module > Overview of JTAG
7.1
7.2
138
Overview of JTAG
Tsi148 has a dedicated user-accessible JTAG (Joint Test Action Group) module that is fully
compatible with the IEEE 1149.1 Standard Test Access Port and Boundary-Scan Architecture.
The JTAG logic includes a Test Access Port (TAP) consisting of five dedicated signals (TCK,
TRST_, TMS, TDI, TDO), a TAP controller, instruction register, bypass register, other test
data registers (for example, device identity register, etc.), and boundary-scan register (see
Figure
Figure 32: JTAG Functional Diagram
Instructions
Tsi148’s IEEE 1149.1 implementation includes the following instructions:
•
EXTEST: This instruction drives the data loaded into the boundary scan register through
the output pin to drive another chip with the value loaded in the boundary scan cell by the
SAMPLE/PRELOAD instruction. At the same time, this instruction also captures the
data at the inputs. This process is useful for board interconnect testing.
32).
Test Data
Registers
Other
Multiplexer
Boundary Scan Cell
Register
Bypass
Instruction
Register
Multiplexer
Boundary Scan Path
Controller
Tsi148 PCI/X-to-VME Bus Bridge User Manual
TAP
TRST_
TMS
TCK
TDO
TDI
Test Access
Port (TAP)
80A3020_MA001_13