ZiLOG Z80 User Manual page 193

1RGTCVKQP ,)) ‘ 
1R %QFG (,
1
&GUETKRVKQP 7KH HQDEOH LQWHUUXSW LQVWUXFWLRQ VHWV ERWK LQWHUUXSW HQDEOH IOLS IORSV ,)),
DQG ,)) WR D ORJLF  DOORZLQJ UHFRJQLWLRQ RI DQ\ PDVNDEOH LQWHUUXSW 1RWH
WKDW GXULQJ WKH H[HFXWLRQ RI WKLV LQVWUXFWLRQ DQG WKH IROORZLQJ LQVWUXFWLRQ
PDVNDEOH LQWHUUXSWV DUH GLVDEOHG
%QPFKVKQP $KVU #HHGEVGF 1RQH
'ZCORNG :KHQ WKH &38 H[HFXWHV LQVWUXFWLRQ
HQDEOHG DW H[HFXWLRQ RI WKH
80
1 1 1 1
0 &\FOHV
1
(,
FB
0 1 1
7 6WDWHV  0+] (7
4
El RETI
LQVWUXFWLRQ
RETI
< %27
7UGT U /CPWCN
1.00
WKH PDVNDEOH LQWHUUXSW LV
= ,QVWUXFWLRQ 6HW