ZiLOG Z8

3047-013,3047-014
I/O Ports
R246 P2M
Port 2 Mode Register
(% F6; Write Only)
/1/1/1/1/1/1/1/11
I P2o-P27 MODE
'-- ---- 0 OUTPUT
1 INPUT
Figure 9-22. Port 2 Reset
R247 P3M
Port 3 Mode Register
(%
F7; Write Only)
/0/01010101011101
I' Lo PORT 2 PULL·UPS OPEN DRAIN
1 PORT 2 PULL-UPS ACTIVE
RESERVED
o P32 = INPUT P3s = OUTPUT
1 P32 = DAVO/RDYO P3s = RDYO/DAVO
o 0 P33 = INPUT P34 = OUTPUT
'------~ ~} P33 = INPUT P34 = DM
1 1 P33 = DAVlIRDY1 P34 = RDY1/DAV1
'--- _______ 0 P31 = INPUT (TIN) P36 = OUTPUT (ToUT)
1 P31 = DAV2/RDY2 P3G = RDY2IDAV2
o P30 = INPUT P37 = OUTPUT
'-----------1 P30 = SERIAL IN P30 = SERIAL OUT
'-- _________ ~ ~~~:~~ g~F
Figure 9-23. Port J Reset
9-11