Z8932120PSC Datasheet, PDF (16/40 Pages) Zilog, Inc. – 16-BIT DIGITAL SIGNAL PROCESSORS

Z89321/371/391
16-Bit Digital Signal Processors
TCY
CLOCK
SSET
SCLK
FS0, FS1
FSSET
TXD
TXSET
1
RXD
1
0
1
RXHOLD
RXSET
0
1
FSSET
0
1
0
1
Figure 10. CODEC Interface Timing
TCY
CLOCK
Zilog
INT 0,1,2
PROGRAM
ADDRESS
EXECUTE
INTSET
INTWidth
Fetch N –1
Fetch N
Fetch N +1
Fetch Int_Addr
Fetch I
Fetch I +1
Execute N –1
Execute N
CALL Int Routine
Execute Int Routine
Figure 11. Interrupt Timing
16
PRELIMINARY
DS97DSP0100