參數(shù)資料
型號: MC56F8157
廠商: Electronic Theatre Controls, Inc.
英文描述: 16-BIT HYBRID CONTROLLERS
中文描述: 16位混合控制器
文件頁數(shù): 28/172頁
文件大?。?/td> 2444K
代理商: MC56F8157
56F8357 Technical Data, Rev. 8.0
28
Freescale Semiconductor
Preliminary
TRST
136
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.
PHASEA0
(TA0)
(GPIOC4)
155
Schmitt
Input
Schmitt
Input/
Output
Schmitt
Input/
Output
Input
Input
Input
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.
PHASEB0
(TA1)
(GPIOC5)
156
Schmitt
Input
Schmitt
Input/
Output
Schmitt
Input/
Output
Input
Input
Input
Phase B
— Quadrature Decoder 0, PHASEB input
TA1
— Timer A ,Channel
Port C GPIO
— This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is PHASEB0.
To deactivate the internal pull-up resistor, clear bit 5 of the
GPIOC_PUR register.
Table 2-2 Signal and Package Information for the 160-Pin LQFP
Signal Name
Pin No.
Type
State
During
Reset
Signal Description
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