ADSP-2186N Просмотр технического описания (PDF) - Analog Devices

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ADSP-2186N

0.3-2.2V; instruction rate 80MHz; DSP microcomputer

Analog Devices 

ADSP-218xN

Table 12. Unused Pin Terminations (Continued)

Pin Name1

I/O

3-State

(Z)2

Reset

State

Hi-Z3 Caused By

Unused Configuration

ERESET

I

I

Float

EMS

O

O

Float

EINT

I

I

Float

ECLK

I

I

Float

ELIN

I

I

Float

ELOUT

O

O

Float

1 CLKIN, RESET, and PF3–0/Mode D–A are not included in this table because these pins must be used.

2 All bidirectional pins have three-stated outputs. When the pin is configured as an output, the output is Hi-Z (high impedance) when inactive.

3 Hi-Z = High Impedance.

4 If the CLKOUT pin is not used, turn it OFF, using CLKODIS in SPORT0 autobuffer control register.

5 If the Interrupt/Programmable Flag pins are not used, there are two options: Option 1: When these pins are configured as INPUTS at reset and function as interrupts

and input flag pins, pull the pins High (inactive). Option 2: Program the unused pins as OUTPUTS, set them to 1 prior to enabling interrupts, and let pins float.

Rev. A | Page 21 of 48 | August 2006

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