參數(shù)資料
型號: SPAK56F8346FV60
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 數(shù)字信號處理
英文描述: 16-BIT, 240 MHz, OTHER DSP, PQFP144
封裝: 20 X 20 MM, 0.50 MM PITCH, 1.40 MM HEIGHT, PLASTIC, LQFP-144
文件頁數(shù): 79/156頁
文件大?。?/td> 2219K
代理商: SPAK56F8346FV60
56F8346 Signal Pins
MOTOROLA
56F8346 Technical Data
29
Preliminary
EXTBOOT
112
Schmitt
Input
External Boot — This input is tied to VDD to force the
device to boot from off-chip memory (assuming that the
on-chip Flash memory is not in a secure state). Otherwise,
it is tied to ground. For details, see Table 4-4.
Note: When this pin is tied low, the customer boot software
should disable the internal pull-up resistor by setting the
XBOOT bit of the SIM_PUDR; see Section 6.5.6.
EMI_MODE
143
Schmitt
Input
External Memory Mode — The EMI_MODE input is
internally tied low (to VSS). This device will boot from
internal flash memory under normal operation. This
function is also affected by EXTBOOT and the Flash
security mode. For details, see Table 4-4.
If a 20-bit address bus is not desired, then this pin is tied to
ground.
Note: When this pin is tied low, the customer boot software
should disable the internal pull-up resistor by setting the
EMI_MODE bit of the SIM_PUDR; see Section 6.5.6.
Table 2-2 56F8346 Signal and Package Information for the 144 Pin LQFP
Signal Name
Pin No.
Type
State
During
Reset
Signal Description
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