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參數(shù)資料
| 型號(hào)： | MT90863 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 3V Rate Conversion Digital Switch(3V 速率轉(zhuǎn)換數(shù)字開關(guān)) |
| 中文描述： | 3V的速率轉(zhuǎn)換數(shù)字交換機(jī)（3V的速率轉(zhuǎn)換數(shù)字開關(guān)） |
| 文件頁數(shù)： | 24/35頁 |
| 文件大?。?/td> | 168K |
| 代理商： | MT90863 |
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MT90863
Advance Information
24
JTAG Support
The MT90863 JTAG interface conforms to the
Boundary-Scan IEEE1149.1 standard. This stan-
dard
specifies
a
design-for-testability
called Boundary-Scan Test (BST). The operation of
the boundary-scan circuitry is controlled by an
external Test Access Port (TAP) Controller.
technique
Test Access Port (TAP)
The Test Access Port (TAP) accesses the MT90863
test functions. It consists of three input pins and one
output pin as follows:
Test Clock Input (TCK)
TCK provides the clock for the test logic.
The TCK does not interfere with any on-chip
clock and thus remains independent. The
TCK permits shifting of test data into or out
of
the
Boundary-Scan
concurrently with the operation of the device
and without interfering with the on-chip
logic.
register
cells
Test Mode Select Input (TMS)
The TAP Controller uses the logic signals
received at the TMS input to control test
operations. The TMS signals are sampled at
the rising edge of the TCK pulse. This pin is
internally pulled to Vdd when it is not driven
from an external source.
Test Data Input (TDI)
Serial input data applied to this port is fed
either into the instruction register or into a
test
data
register,
sequence previously applied to the TMS
input. Both registers are described in a
subsequent section. The received input data
is sampled at the rising edge of TCK pulses.
This pin is internally pulled to Vdd when it is
not driven from an external source.
depending
on
the
Test Data Output (TDO)
Depending
applied to the TMS input, the contents of
either
the
instruction
register are serially shifted out towards the
TDO. The data out of the TDO is clocked on
the falling edge of the TCK pulses. When no
data is shifted through the boundary scan
cells, the TDO driver is set to a high
impedance state.
on
the
sequence
previously
register
or
data
Test Reset (TRST
)
Reset the JTAG scan structure. This pin is
internally pulled to VDD.
Instruction Register
The MT90863 uses the public instructions defined in
the IEEE 1149.1 standard. The JTAG Interface
contains a two-bit instruction register. Instructions
are serially loaded into the instruction register from
the TDI when the TAP Controller is in its shifted-IR
state. These instructions are subsequently de-coded
to achieve two basic functions: to select the test data
register that may operate while the instruction is
current; and, to define the serial test data register
path that is used to shift data between TDI and DO
during data register scan-ning.
Test Data Register
As specified in IEEE 1149.1, the MT90863 JTAG
Interface contains three test data registers:
The Boundary-Scan Registe
r
The Boundary-Scan register consists of a
series of Boundary-Scan cells arranged to
form a scan path around the boundary of
the MT90863 core logic.
The Bypass Register
The Bypass register is a single stage shift
register that provides a one-bit path from
TDI to its TDO.
The Device Identification Register
The device identification register is a 32-bit
register. The register contents are:
The LSB bit in the device identification register is
the first bit clock out.
The MT90863 scan register contains 212 bits. Bit 0
in Table 23 Boundary Scan Register is the first bit
clocked out. All tri-state enable bits are active high.
MSB
LSB
0000 0000 1000 0110 0011 0001 0100 1011
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT90863AG | 制造商:Microsemi Corporation 功能描述:RATE CONVERSION DIGITAL SWITCH - Trays 制造商:Microsemi Corporation 功能描述:Microsemi MT90863AG Communication Misc 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH RCDX 144PBGA 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH RCDX 144PBGA |
| MT90863AG1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:3V Rate Conversion Digital Switch |
| MT90863AG2 | 制造商:Microsemi Corporation 功能描述:SWITES 144BGA - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH RCDX 144PBGA 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH RCDX 144PBGA |
| MT90863AL | 制造商:Microsemi Corporation 功能描述:RATE CONVERSION DIGITAL SWITCH - Trays |
| MT90863AL1 | 制造商:Microsemi Corporation 功能描述:PB FREE RATE CONVERSION DIGITAL SWITCH - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH RCDX 128MQFP |
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