Z86C0208PEC 데이터 시트보기 (PDF) - Zilog

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Z86C0208PEC

COST EFFECTIVE, 512-BYTE ROM CMOS Z8® MICROCONTROLLERS

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Z86C02/E02/L02

Cost Effective, 512-Byte ROM CMOS Z8® Microcontrollers

Z8 CONTROL REGISTERS (Continued)

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R250 IRQ

D7 D6 D5 D4 D3 D2 D1 D0

IRQ0 = P32 Input ↓

IRQ1 = P33 Input ↓

IRQ2 = P31 Input ↓

IRQ3 = P32 Input ↑

IRQ4 = Reserved

IRQ5 = T1

Reserved (Must be 0.)

R253 RP

D7 D6 D5 D4 D3 D2 D1 D0

Reserved (Must be 0.)

Register Pointer

Figure 35. Register Pointer FDH: Read/Write)

Figure 32. Interrupt Request Register

(FAH: Read/Write)

R251 IMR

D7 D6 D5 D4 D3 D2 D1 D0

1 Enables IRQ5-IRQ0

(D 0 = IRQ0)

Reserved (Must be 0.)

1 Enables Interrupts

Figure 33. Interrupt Mask Register (FBH: Read/Write)

R252 Flags

D7 D6 D5 D4 D3 D2 D1 D0

User Flag F1

User Flag F2

Half Carry Flag

Decimal Adjust Flag

Overflow Flag

Sign Flag

Zero Flag

Carry Flag

R255 SPL

D7 D6 D5 D4 D3 D2 D1 D0

Stack Pointer Lower

Byte (SP 7 - SP 0 )

Figure 36. Stack Pointer (FFH: Read/Write)

Figure 34. Flag Register (FCH: Read/Write)

34

PRELIMINARY

DS96DZ80301

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