Datasheet

ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Rev. C | Page 19 of 48 | January 2008
TERMINATING UNUSED PINS
Table 12 shows the recommendations for terminating
unused pins.
Table 12. Unused Pin Terminations
Pin Name
1
I/O
3-State (Z)
2
Reset
State High-Z
3
Caused By Unused Configuration
XTAL O O Float
CLKOUT O O Float
4
A13–1 or O (Z) High-Z BR, EBR Float
IAD12–0 I/O (Z) High-Z IS
Float
A0 O (Z) High-Z BR
, EBR Float
D23–8 I/O (Z) High-Z BR
, EBR Float
D7 or I/O (Z) High-Z BR
, EBR Float
IWR
II High (Inactive)
D6 or I/O (Z) High-Z BR
, EBR Float
IRD
IIBR, EBR High (Inactive)
D5 or I/O (Z) High-Z Float
IAL I I Low (Inactive)
D4 or I/O (Z) High-Z BR
, EBR Float
IS
II High (Inactive)
D3 or I/O (Z) High-Z BR
, EBR Float
IACK
Float
D2–0 or I/O (Z) High-Z BR
, EBR Float
IAD15–13 I/O (Z) High-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
II 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 Float
5
IRQE/PF4 I/O (Z) I Input = High (Inactive) or Program as Output, Set to
1, Let Float
5
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