Z86E6116PSC Datasheet, PDF (49/69 Pages) Zilog, Inc. – Z86E61/Z86E63 CMOS Z8 16K/32K EPROM Microcontroller

Z86E61/E63
CMOS Z8 16K/32K EPROM Microcontroller
45
R246 P2M
D7 D6 D5 D4 D3 D2 D1 D0
P20 - P27 I/O Definition
0 Defines Bit as Output
1 Defines Bit as Input
Figure 34. Port 2 Mode Register (F6_H: Write Only)
R247 P3M
D7 D6 D5 D4 D3 D2 D1 D0
0 Port 2 Pull-Ups Open Drain
1 Port 3 Pull-Ups Active
Reserved (Must be 0)
0 P32 - Input
P35 = Output
1 P32 = DAV0/RDY0
P35 = RDY0/DAV0
00 P33 = Input
P34 = Output
01 P33 = Input
10 P34 = DM
11 P33 = DAV1/RDY1
P34 = RDY1/DAV1
0 P31 = Input (TIN)
P36 = Output (TOUT)
1 P31 = DAV2/RDY2
P36 = RDY2/DAV2
0 P30 = Input
P37 = Output
1 P30 = Serial In
P37 = Serial Out
0 Parity Off
1 Parity On
Figure 35. Port 3 Mode Register (F7_H: Write Only)
PS014401-1001