Zilog Z86193 - Manual (Page 53)

Z8
®
CPU
User Manual
UM001604-0108 Input/Output Ports
46
Figure 30. Port 0 Configuration with Open-Drain Capability, Autolatch, and
Schmitt-Trigger
OEN
Port 1
(I/O or AD15–AD08)
Handshake Controls
DAV0 and RDY0
4
Z8
(P32 and P35)
PIN
OUT
IN
2.3 V Hysteresis
OPEN-DRAIN
1.5
R ≈ 500 KΩ
Autolatch
4