–7–

REV. 0

ADSP-218xN Series

D3 or

I/O (Z)

Hi-Z

BR, EBR

Float

IACK

Float

D2 – 0 or

I/O (Z)

Hi-Z

BR, EBR

Float

IAD15 – 13

I/O (Z)

Hi-Z

IS

Float

PMS

O (Z)

O

BR, EBR

Float

DMS

O (Z)

O

BR, EBR

Float

BMS

O (Z)

O

BR, EBR

Float

IOMS

O (Z)

O

BR, EBR

Float

CMS

O (Z)

O

BR, EBR

Float

RD

O (Z)

O

BR, EBR

Float

WR

O (Z)

O

BR, EBR

Float

BR

I

I

High (Inactive)

BG

O (Z)

O

EE

Float

BGH

OO

Float

IRQ2/PF7

I/O (Z)

I

Input = High (Inactive) or Program as

Output, Set to 1, Let Float

5

IRQL1/PF6

I/O (Z)

I

Input = High (Inactive) or Program as

Output, Set to 1, Let Float

5

IRQL0/PF5

I/O (Z)

I

Input = High (Inactive) or Program as

Output, Set to 1, Let Float5

IRQE/PF4

I/O (Z)

I

Input = High (Inactive) or Program as

Output, Set to 1, Let Float5

PWD

II

High

SCLK0

I/O

I

Input = High or Low, Output = Float

RFS0

I/O

I

High or Low

DR0

I

I

High or Low

TFS0

I/O

I

High or Low

DT0

O

O

Float

SCLK1

I/O

I

Input = High or Low, Output = Float

RFS1/IRQ0

I/O

I

High or Low

DR1/FI

I

I

High or Low

TFS1/IRQ1

I/O

I

High or Low

DT1/FO

O

O

Float

EE

I

I

Float

EBR

II

Float

EBG

OO

Float

ERESET

II

Float

EMS

OO

Float

EINT

II

Float

ECLK

I

I

Float

ELIN

I

I

Float

ELOUT

O

O

Float

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.

Table 5. Unused Pin Terminations (Continued)

I/O

3-State

Reset

State

Unused Configuration