Z86K13 Datasheet, PDF (20/24 Pages) Zilog, Inc. – CMOS Z8 8-Bit MCU Keyboard Controllers

Z86K13/K14/K15/K16/K17/K18
CMOS Z8® 8-Bit MCU Keyboard Controllers
Zilog
R250 IRQ
D7 D6 D5 D4 D3 D2 D1 D0
* On RESET
IRQ0 = P32 Input
IRQ1 = P33 Input
IRQ2 = P31 Input
IRQ3 = P30 Input
IRQ4 = TO
Stop Delay
0 OFF *
1 ON
Stop Flag
0 POR/WDT*
1 Stop Recovery
WDT Hot Bit (Read Only)
0 POR*
1 WDT Timeout
Figure 27. Interrupt Request Register
(FA_H: Read/Write)
R251 IMR
D7 D6 D5 D4 D3 D2 D1 D0
1 Enables IRQ0-IRQ4
(D0= IRQ0)
Reserved (Must be 0)
1 Enables Interrupts
Figure 28. Interrupt Mask Register
(FB_H: 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
Figure 29. Flag Register
(FC_H: Read/Write)
R253 RP
D7 D6 D5 D4 D3 D2 D1 D0
Working Registers
r4
r5
Register
r6
Pointer
r7
Register Pointer
Figure 30. (FD_H: Read/Write)
R255 SPL
D7 D6 D5 D4 D3 D2 D1 D0
Stack Pointer Lower
Byte (SP0-SP7)
Stack Pointer
Figure 31. (FF_H: Read/Write)
20
PRELIMINARY
DS97KEY0204