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参数资料
| 型号： | PM4541 |
| 厂商： | PMC-Sierra, Inc. |
| 英文描述： | T1XC EVALUATION DAUGHTER BOARD |
| 中文描述： | T1XC评价子板 |
| 文件页数： | 12/46页 |
| 文件大小： | 520K |
| 代理商： | PM4541 |
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TELECOM STANDARD PRODUCT
PMC-Sierra, Inc.
PM4541 T1XC-EVBD
PMC-920314
ISSUE 2
T1XC EVALUATION DAUGHTERBOARD
9
C4MB
O
J29-9
Inverted C4M clock.
C16M
O
J29-10
Direct access to 16.388 MHz clock driving the
MT8940. This pin is mainly provided for direct
oscillator access. If the MT8940 is not used the
16.388 MHz clock can be replaced by a 2.048 MHz
clock with access to the clock signal provided by
this pin.
C12M
O
J29-11
Direct access to 12.355 MHz clock driving the
MT8940. This pin is mainly provided for direct
oscillator access. If the MT8940 is not used the
12.355 MHz clock can be replaced by a 1.544 MHz
clock with access to the clock signal provided by
this pin.
GND
G
J29-12
MT8940 DPLL header ground reference.
3.2.3 T1XC Headers
A number of headers are provided which give direct access to the main functional
pins on the T1XCs. Both devices on the daughterboard have the same pins brought
out to headers and every effort has been made to insure that all headers are
symmetrical with both devices. The T1XCs are uniquely identified by an east/west
designation. The following table gives a brief description of the T1XC signals. For a
more detailed description of the T1XC device, refer to the T1XC datasheet.
Signal
TAP
TAN
RAS
REF
GND
TCLKI
TCLKO
TDP/TDD
Type
O
O
I
I/O
G
I
O
O
Ref (E)
J9-1
J9-2
J9-3
J9-4
J9-5
J15-1
J15-2
J15-3
Ref (W)
J10-1
J10-2
J10-3
J10-4
J10-5
J16-1
J16-2
J16-3
Description
Transmit Analog Positive Pulse
Transmit Analog Negative Pulse
Receive Analog Signal
Receive Reference
T1XC Analog Ground Reference
Transmit Clock Input
Transmit Clock Output
Transmit Digital Positive Line Pulse/
Transmit Digital DS-1 Signal
Transmit Digital Negative Line Pulse/
Transmit FIFO Flag
Transmit Data Link Clock/ Transmit Data
Link Underrun
Transmit Data Link Signal/ Transmit Data
Link Interrupt
TDN/TFLG
O
J15-4
J16-4
TDLCLK/
TDLUDR
TDLSIG/
TDLINT
O
J15-5
J16-5
I/O
J15-6
J16-6
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