ADSP-2184NKSTZ-320 Datasheet, PDF (21/48 Pages) Analog Devices – DSP Microcomputer

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