Z86D73 Datasheet, PDF (83/92 Pages) Zilog, Inc. – 40/44/48-Pin Low-Voltage IR OTP

Z86D73
40/44/48-Pin Low-Voltage IR OTP
77
R248 P01M
D7 D6 D5 D4 D3 D2 D1 D0
P00–P03 Mode
00: Output
01: Input *
1X: A11–A8
Stack Selection
0: External
1: Internal *
P17–P10 Mode
00: Byte Output
01: Byte Input
10: AD7–AD0
11: High-Impedance AD7–AD0, AS,
DS, R/W, A11–A8, A15–A12, if
selected
External Memory Timing
0: Normal *
1: Extended
P07–P04 Mode
00: Output
01: Input *
1X: A15–A12
* Default setting after reset; only P00 and P07 are available on Z86L71
Figure 50. Port 0 and 1 Mode Register (F8h: Write Only)
PS019402-1103
PRELIMINARY