Z86C96 View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z86C96

CMOS Z8®MICROCONTROLLER

Zilog 

REGISTER POINTER

7654321 0

Working Register

Group Pointer

Expanded Register

Group Pointer

Z8 Reg. File

%FF

%F0

Z86C61/62/96

Z8® MICROCONTROLLER

Z8 STANDARD CONTROL REGISTERS

REGISTER

% FF

% FE

% FD

% FC

% FB

% FA

% F9

†

% F8

% F7

% F6

% F5

% F4

% F3

% F2

% F1

% F0

SPL

SPH

RP

FLAGS

IMR

IRQ

IPR

P01M

P3M

P2M

PRE0

T0

PRE1

T1

TMR

SIO

RESET CONDITION

D7 D6 D5 D4 D3 D2 D1 D0

UUUUUU U U

UUUUUU U U

000000 0 0

UUUUUU U U

0 UUUUU U U

000000 0 0

UUUUUU U U

010011 0 1

000000 0 0

111111 1 1

UUUUUU U 0

UUUUUU U U

UUUUUU 0 0

UUUUUU U U

000000 0 0

UUUUUU U U

%7F

%0F

%00

Reserved

EXPANDED REG. GROUP (F)

REGISTER

% (F) 0F

% (F) 0E

% (F) 0D

% (F) 0C

% (F) 0B

% (F) 0A

% (F) 09

% (F) 08

% (F) 07

% (F) 06

% (F) 05

% (F) 04

% (F) 03

% (F) 02

% (F) 01

% (F) 00

Reserved

Reserved

Reserved

Reserved

Reserved

ICE

P6M

P6D

P6

P45M

P5D

P5

P4D

P4

Reserved

Reserved

RESET CONDITION

0

UU UU

UUUU UU UU

UUUU UU UU

EXPANDED REG. GROUP (0)

REGISTER

% (0) 03

P3

% (0) 02

P2

% (0) 01

P1

% (0) 00

P0

RESET CONDITION

1 1 1 1 UU U U

UU U U UU U U

UU U U UU U U

UU U U UU U U

U = Unknown

† = For Z86C96 (ROMless) Reset condition:"10110110"

Figure 20. Expanded Register File Architecture

21

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