參數(shù)資料
型號: MC56F8357MPY60
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, PQFP160
封裝: PLASTIC, LQFP-160
文件頁數(shù): 90/176頁
文件大小: 2230K
代理商: MC56F8357MPY60
56F8357 Technical Data, Rev. 9.0
20
Freescale Semiconductor
Preliminary
CLKO
3
Output
Tri-Stated
Clock Output — This pin outputs a buffered clock signal.
Using the SIM CLKO Select Register (SIM_CLKOSR), this pin
can be programmed as any of the following: disabled,
CLK_MSTR (system clock), IPBus clock, oscillator output,
prescaler clock and postscaler clock. Other signals are also
available for test purposes.
See Part 6.5.7 for details.
A0
(GPIOA8)
154
Output
Input/
Output
Tri-stated
Address Bus — A0 - A5 specify six of the address lines for
external program or data memory accesses.
Depending upon the state of the DRV bit in the EMI bus control
register (BCR), A0–A5 and EMI control signals are tri-stated when
the external bus is inactive.
Most designs will want to change the DRV state to DRV = 1
instead of using the default setting.
Port A GPIO — These six GPIO pins can be individually
programmed as input or output pins.
After reset, the default state is Address Bus.
To deactivate the internal pull-up resistor, clear the appropriate
GPIO bit in the GPIOA_PUR register.
Example: GPIOA8, clear bit 8 in the GPIOA_PUR register.
A1
(GPIOA9)
10
A2
(GPIOA10)
11
A3
(GPIOA11)
12
A4
(GPIOA12)
13
A5
(GPIOA13)
14
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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