Z86C9620VSC datasheet(36/46 Pages) ZILOG

36 / 46 page

Z86C61/62/96

Z8® MICROCONTROLLER

Z8 CONTROL REGISTER DIAGRAMS (Continued)

Figure 41. Interrupt Mask Register

(FB

H: Read/Write)

R253 RP

Expanded Register Pointer

Working Register Pointer

Figure 43. Register Pointer Register

(FD

H: Read/Write)

Stack Pointer Upper

Byte (SP15 - SP8)

R254 SPH

Enables RAM Protect

Enables IRQ5-IRQ0

(D0 = IRQ0)

Enables Interrupts

R251 IMR

R252 FLAGS

User Flag F1

User Flag F2

Half Carry Flag

Decimal Adjust Flag

Overflow Flag

Sign Flag

Zero Flag

Carry Flag

Figure 42. Flag Register

(FC

H: Read/Write)

Figure 44. Stack Pointer Register

(FE

H: Read/Write)

Figure 45. Stack Pointer Register

(FF

H: Read/Write)

Stack Pointer Lower

Byte (SP7 - SP0)

R255 SPL

Figure 40. Interrupt Request Register

(FA

H: Read/Write)

R250 IRQ

Reserved (Must be 0)

IRQ0 = P32 Input (D0 = IRQ0)

IRQ1 = P33 Input

IRQ2 = P31 Input

IRQ3 = P30 Input, Serial Input

IRQ4 = T0

Serial Output

IRQ5 = T1

Z86C9620VSC Datasheet(PDF) 36 Page - Zilog, Inc.

Z86C9620VSC Datasheet(HTML) 36 Page - Zilog, Inc.

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