IA88C00-PLC68I-R datasheet(15/80 Pages) INNOVASIC

15 / 80 page

IA88C00

Data Sheet

Microcontroller

As of Production Version -01

ENG 21 0 050519-00

www.Innovasic

Innovasic.com

Innovasic Semiconductor

Page 15 of 80

1.888.824.4184

Set One

FFH

EOH

DFH

DOH

CFH

COH

Mode and Control Registers

(Register Addressing Only)

System Register:

STACK, FLAGS, PORTS, etc.

(Register Addressing Only)

Working Register

(Working Register

Addressing Only)

Bank 1

Bank 0

Data Registers

(Indirect Register, Indexed,

STACK or DMA Access Only)

Set Two

FFH

COH

CFH

OOH

Data Registers

(All Addressing Modes)

192 Bytes

256 Bytes

Figure 7. IA88C00Registers

Working Register Window

Working registers are those registers found within a moveable 8-register section of the register space.

These moveable 8-register sections are defined by register pointers RP0 and RP1, which are control

registers R214 and R215.

Short 4-bit addresses are used to access working registers. The process of accessing working registers,

shown in a section of Figure 7, occurs as follows:

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