Z86E6116PSC Datasheet, PDF (53/69 Pages) Zilog, Inc. – Z86E61/Z86E63 CMOS Z8 16K/32K EPROM Microcontroller

Z86E61/E63
CMOS Z8 16K/32K EPROM Microcontroller
49
R253 SPL
D7 D6 D5 D4 D3 D2 D1 D0
0 Reserved (Must be 0)
f4
r5
Register Pointer
r6
r7
Figure 41. Register Pointer Register (FD_H: Read/Write)
R254 SPL
D7 D6 D5 D4 D3 D2 D1 D0
Stack Pointer Lower
Byte (SP15 - SP8)
Figure 42. Stack Pointer Register (FE_H: Read/Write)
R255 SPL
D7 D6 D5 D4 D3 D2 D1 D0
Stack Pointer Lower
Byte (SP7 - SP0)
Figure 43. Stack Pointer Register (FF_H: Read/Write)
PS014401-1001