tfra08c13 ETC-unknow, tfra08c13 Datasheet - Page 110

• Manufacturer Part Number: tfra08c13
• Description: Tfra08c13 Octal T1/e1 Framer
• Manufacturer: ETC-unknow

TFRA08C13 OCTAL T1/E1 Framer
JTAG Boundary-Scan Specification
BYPASS
This instruction selects the BYPASS register. A minimal shift path exists between TDI and TDO. The BYPASS reg-
ister is selected after the UPDATE-IR. The BS register is in normal mode. A 0 is clocked into the BYPASS register
during CAPTURE-DR state. Data can be shifted by the BYPASS register during SHIFT-DR. The contents of the BS
register do not change in the UPDATE-DR state. Please note that a 0 that was loaded during CAPTURE-DR
appears first when the data is being read out.
Boundary-Scan Register
The boundary-scan register is a shift register, whereby one or more BS cells are assigned to every digital
TFRA08C13 pin (with the exception of the pins for the BS architecture, analog signals, and supply voltages). The
TFRA08C13’s boundary-scan register bit-to-pin assignment is defined in the BSDL file, which is available upon
request. Please call 1-800-TECKFAX (1-800-832-5329).
BYPASS Register
The BYPASS register is a one-stage shift register that enables the shift chain to be reduced to one stage in the
TFRA08C13.
DCODE Register
The IDCODE register identifies the TFRA08C13 by means of a parallel, loadable, 32-bit shift register. The code is
loaded on the rising edge of TCK in the CAPTURE-DR state. The 32-bit data is organized into four sections as fol-
lows.
Table 50. IDCODE Register
3-State Procedures
The 3-state input participates in the boundary scan. It has a BS cell, but buffer blocking via this input is suppressed
for the EXTEST instruction. The 3-state input is regarded as a signal input that is to participate in the connection
test during EXTEST. The buffer blocking function should not be active during EXTEST to ensure that the update
pattern at the TFRA08C13 outputs does not become corrupted.
110
Bits 31—28
Version
0001
0111011000110100
Part Number
Bits 27—12
(continued)
Manufacturer ID
00000011101
Bits 11—1
Bit 0
1
1
Preliminary Data Sheet
Lucent Technologies Inc.
Lucent Technologies Inc.
October 2000