參數(shù)資料
型號: MC56F8156VFVE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 數(shù)字信號處理
英文描述: 16-BIT, 120 MHz, OTHER DSP, PQFP144
封裝: ROHS COMPLIANT, LQFP-144
文件頁數(shù): 99/178頁
文件大?。?/td> 910K
代理商: MC56F8156VFVE
Signal Pins
56F8356 Technical Data, Rev. 13
Freescale Semiconductor
27
Preliminary
TDO
124
Output
In reset,
output is
disabled,
pull-up is
enabled
Test Data Output — This tri-stateable output pin provides a serial
output data stream from the JTAG/EOnCE port. It is driven in the
shift-IR and shift-DR controller states, and changes on the falling
edge of TCK.
TRST
120
Schmitt
Input
Input,
pulled high
internally
Test Reset — As an input, a low signal on this pin provides a reset
signal to the JTAG TAP controller. To ensure complete hardware
reset, TRST should be asserted whenever RESET is asserted.
The only exception occurs in a debugging environment when a
hardware device reset is required and the JTAG/EOnCE module
must not be reset. In this case, assert RESET, but do not assert
TRST.
To deactivate the internal pull-up resistor, set the JTAG bit in the
SIM_PUDR register.
Note:
For normal operation, connect TRST directly to VSS. If the
design is to be used in a debugging environment, TRST may be tied to
VSS through a 1K resistor.
PHASEA0
(TA0)
(GPIOC4)
139
Schmitt
Input
Schmitt
Input/
Output
Schmitt
Input/
Output
Input,
pull-up
enabled
Phase A — Quadrature Decoder 0, PHASEA input
TA0 — Timer A, Channel 0
Port C GPIO — This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is PHASEA0.
To deactivate the internal pull-up resistor, clear bit 4 of the
GPIOC_PUR register.
Table 2-2 Signal and Package Information for the 144-Pin LQFP (Continued)
Signal Name
Pin No.
Type
State
During
Reset
Signal Description
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