Addressing A Location Through A Window - Intel 8XC196K Series User Manual

Table of Contents

Table 4-9. Selecting a Window of the Upper Register File (Continued)

for 32-byte Window

Table 4-10. Selecting a Window of Upper Register RAM — 8XC196JV Only

for 32-byte Window

Addressing a Location Through a Window

After you have selected the desired window, you need to know the windowed direct address of

the memory location (the address in the lower register file). Calculate the windowed direct ad-

dress as follows:

Subtract the base address of the area to be remapped (from Table 4-11 on page 4-18) from

the address of the desired location. This gives you the offset of that particular location.

Add the offset to the base address of the window (from Table 4-12 on page 4-20). The

result is the windowed direct address.

(00E0–00FFH)

(00E0–00FFH)

MEMORY PARTITIONS

for 64-byte Window

(00C0–00FFH)

for 64-byte Window

(00C0–00FFH)

for 128-byte Window

(0080–00FFH)

for 128-byte Window

(0080–00FFH)