Analog Devices ADSST-EM-3040 Manual Do Utilizador

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ADSST-SALEM-3T 
 
Rev. 0 | Page 6 of 24 
ADSST-218X COMMON-MODE PINS 
Table 2. 
Pin Name 
No. of Pins 
I/O 
Function 
BG 
Bus Grant Output 
BGH 
Bus Grant Hung Output 
BMS 
Byte Memory Select Output 
BR 
Bus Request Input 
CMS 
Combined Memory Select Output 
DMS 
Data Memory Select Output 
IOMS 
Memory Select Output 
PMS 
Program Memory Select Output 
RD 
Memory Read Enable Output 
RESET 
Processor Reset Input 
WR 
Memory Write Enable Output 
IRQ2/ 
Edge- or Level-Sensitive Interrupt Request
1
PF7 
 
I/O 
Programmable I/O Pin 
IRQL1/ 
Level-Sensitive Interrupt Requests
1
PF6 
 
I/O 
Programmable I/O Pin 
IRQL0/ 
Level-Sensitive Interrupt Requests
1
PF5 
 
I/O 
Programmable I/O Pin 
IRQE/ 
Edge-Sensitive Interrupt Requests
1
PF4 
 
I/O 
Programmable I/O Pin 
MODE A 
Mode Select Input−Checked only during RESET 
PF0 
 
I/O 
Programmable I/O Pin during Normal Operation 
MODE B 
Mode Select Input−Checked only during RESET 
PF1 
 
I/O 
Programmable I/O Pin during Normal Operation 
MODE C 
Mode Select Input−Checked only during RESET 
PF2 
 
I/O 
Programmable I/O Pin during Normal Operation 
MODE D 
Mode Select Input−Checked only during RESET 
PF3 
 
I/O 
Programmable I/O Pin during Normal Operation 
CLKIN, XTAL 
Clock or Quartz Crystal Input 
CLKOUT 1  O 
Processor 
Clock 
Output 
EZ-Port 
I/O 
For Emulation Use 
FI, FO 
 
 
Flag In, Flag Out
2
FL0, FL1, FL2 
Output Flags 
GND 
10 
Power and Ground 
IRQ1:0 
 
 
Edge- or Level-Sensitive Interrupts 
PWD 
Power-Down Control Input 
SPORT0 
I/O 
Serial Port I/O Pins 
SPORT1 
I/O 
Serial Port I/O Pins 
PWDACK 
Power-Down Control Output 
V
DDEXT
4
 
I External 
V
DD
 (2.5 V or 3.3 V) Power (LQFP) 
V
DDEXT
7
 
I External 
V
DD
 
(2.5 V or 3.3 V) Power (Mini-BGA) 
V
DDINT
  
Internal V
DD
 (2.5 V) Power (LQFP) 
V
DDINT
  
Internal V
DD
 (2.5 V) Power (Mini-BGA) 
1
Interrupt/flag pins retain both functions concurrently. If IMASK is set to enable the corresponding interrupts, the DSP will vector to the appropriate interrupt vector 
address when the pin is asserted, either by external devices or set as a programmable flag. 
2
SPORT configuration determined by the DSP System Control register. Software configurable.