Z86C83 Datasheet, PDF (43/46 Pages) Zilog, Inc. – Z8 MCU MICROCONTROLLERS

Z86C83/C84
Z8^® MCU Microcontrollers
Z8 CONTROL REGISTERS (Continued)
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 63. Flag Register (F_CH: Read/Write)
R253 RP
D7 D6 D5 D4 D3 D2 D1 D0
Note: Default Setting After Reset = 00000000
Expanded Register Group
Working Register Group
Figure 64. Register Pointer (F_DH: Read/Write)
R254 GPR
D7 D6 D5 D4 D3 D2 D1 D0
Default Setting After Reset = 00H
0 = Low Level
1 = High Level
Figure 65. General-Purpose Register
(F_EH: Read/Write)
R255 SPL
D7 D6 D5 D4 D3 D2 D1 D0
Default Setting After Reset = 00H
Stack Pointer Lower
Byte (SP7-SP0)
0 = Low Level
1 = High Level
Figure 66. Stack Pointer (F_FH: Read/Write)
P2RES Bank C, Register 3
D7 D6 D5 D4 D3 D2 D1 D0
Port 2 (P27-P20) 10K Pull-up
0 = Disabled
1 = Enabled
Figure 67. Port 2 Pull-up Register
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DS96DZ80203