Analog Devices adsp-2100 Manual page 62

3 Program Control
MUX
CNTR
(Counter)
CE
MUX
STATUS
REGISTERS
ARITHMETIC
STATUS
(from ALU)
INTERRUPT
CONTROLLER
INTERRUPTS
Figure 3.1 Program Sequencer Block Diagram
3 – 2
DMD BUS
COUNT
STACK
OUT
STATUS
STACK
PC
STACK
CONDITION CODE
CONDITION
LOGIC
PROGRAM
COUNTER
INCREMENT
NEXT ADDRESS MUX
PMA BUS
from INSTRUCTION REGISTER
ADDRESS OF JUMP/CALL
FUNCTION FIELD
ADDRESS OF LAST
INSTRUCTION IN LOOP
&
TERMINATION
CONDITION
LOOP
STACK
LOOP
COMPARATOR
MUX
from
FI Pin
NEXT
ADDRESS
SOURCE
SELECT