Z86E4000ZDV Zilog, Z86E4000ZDV Datasheet - Page 58
Z86E4000ZDV
Manufacturer Part Number
Z86E4000ZDV
Description
44 PIN PLCC ADAPTER
Manufacturer
Zilog
Datasheet
1.Z86E4001ZDV.pdf
(64 pages)
Specifications of Z86E4000ZDV
Convert From (adapter End)
40-Pin DIP ZIF Socket
Convert To (adapter End)
44-PLCC Plug
For Use With/related Products
Zilog Emulators/Programmers
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-2015
- Current page: 58 of 64
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Zilog
DS97Z8X0502
R251 IMR
D7 D6 D5 D4 D3 D2 D1 D0
R252 FLAGS
† This option must be selected when ROM code is
submitted for ROM Masking, otherwise this control bit
is disabled permanently.
R250 IRQ
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6
Default After Reset = 00H
Figure 55. Interrupt Request Register
Figure 56. Interrupt Mask Register
D5 D4 D3 D2
Figure 57. Flag Register
FBH: Read/Write
FCH: Read/Write
FAH: Read/Write
D1 D0
1 Enables IRQ5-IRQ0
1 Enables RAM Protect †
1 Enables Interrupts
IRQ0 = P32 Input
IRQ1 = P33 Input
IRQ2 = P31 Input
IRQ3 = P30 Input
IRQ4 = T0
IRQ5 = T1
Inter Edge
(D0 = IRQ0)
P31
P31
P31
P31
User Flag F1
User Flag F2
Half Carry Flag
Decimal Adjust Flag
Overflow Flag
Sign Flag
Zero Flag
Carry Flag
P32
P32
P32
P32
P R E L I M I N A R Y
= 00
= 01
= 10
= 11
R254 SPH
R253 RP
R255 SPL
Default After Reset = 00H
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
Figure 59. Stack Pointer High
Figure 60. Stack Pointer Low
Figure 58. Register Pointer
FDH: Read/Write
FEH: Read/Write
FFH: Read/Write
Z8 4K OTP Microcontroller
Expanded Register File
Working Register Pointer
(Z86E40)
Stack Pointer Upper
Byte (SP8 - SP15)
(Z86E30/E31)
0 = 0 State
1 = 1 State
Stack Pointer Lower
Byte (SP0 - SP7)
Z86E30/E31/E40
59
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