z86e72 ZiLOG Semiconductor, z86e72 Datasheet - Page 94

• Manufacturer Part Number: z86e72
• Description: Otp Microcontroller
• Manufacturer: ZiLOG Semiconductor

PS008704-0507
D7 D6 D5 D4 D3 D2 D1 D0
R249 IPR
D7 D6 D5 D4 D3 D2 D1 D0
Figure 59. Port 0 and 1 Mode Register—F8H: Write Only
P00–P03 Mode
Stack Selection
P17–P10 Mode
External Memory Timing
P07–P04 Mode
1X A15–A12
00 Output
01 Input*
00 Output
01 Input*
1X A11–A8
0 External
1 Internal*
00 Byte Output
01 Reserved
10 AD7–AD0
11 High-Impedance AD7AD0, /AS, /DS, /R//W, A11–A8,
0 Normal*
1 Extended
Reserved (must be 0)
A15–A12, If Selected
Interrupt Group Priority
000 = Reserved
001 = C>A>B
101 = A>B>C
011 = A>C>B
100 = B>C>A
101 = C>B>A
110 = B>A>C
111 = Reserved
IRQ1, IRQ, Priority (Group C)
0 = IRQ1>IRQ4
1 = IRQ4>IRQ1
IRQ0, IRQ2, Priority (Group B)
0 = IRQ2>IRQ0
1 = IRQ0>IRQ2
IRQ3, IRQ5, Priority (Group A)
0 = IRQ5>IRQ3
1 = IRQ3>IRQ5
OTP Microcontroller
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