Z86C96 查看數據表（PDF） - Zilog

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Z86C96

CMOS Z8®MICROCONTROLLER

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Z8 CONTROL REGISTER DIAGRAMS (Continued)

Z86C61/62/96

Z8® MICROCONTROLLER

R250 IRQ

D7 D6 D5 D4 D3 D2 D1 D0

R253 RP

D7 D6 D5 D4 D3 D2 D1 D0

IRQ0 = P32 Input (D0 = IRQ0)

IRQ1 = P33 Input

IRQ2 = P31 Input

IRQ3 = P30 Input, Serial Input

IRQ4 = T0 Serial Output

IRQ5 = T1

Reserved (Must be 0)

Expanded Register Pointer

Working Register Pointer

Figure 43. Register Pointer Register

(FDH: Read/Write)

Figure 40. Interrupt Request Register

(FAH: Read/Write)

R254 SPH

D7 D6 D5 D4 D3 D2 D1 D0

R251 IMR

D7 D6 D5 D4 D3 D2 D1 D0

1 Enables IRQ5-IRQ0

(D0 = IRQ0)

1 Enables RAM Protect

1 Enables Interrupts

Figure 41. Interrupt Mask Register

(FBH: Read/Write)

Stack Pointer Upper

Byte (SP15 - SP8)

Figure 44. Stack Pointer Register

(FEH: Read/Write)

R255 SPL

D7 D6 D5 D4 D3 D2 D1 D0

Stack Pointer Lower

Byte (SP7 - SP0)

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

Figure 45. Stack Pointer Register

(FFH: Read/Write)

Figure 42. Flag Register

(FCH: Read/Write)

36

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