7 urom_movefp, 8 urom_movefpinc, 9 urom_movefpdec – Maxim Integrated MAXQ610 User Manual

Page 199: Maxq610 user’s guide

15-6

MAXQ610 User’s Guide

15.2.7 UROM_moveFP

Notes:
• Before calling this function, DPC should be set appropriately to configure BP[OFFS] for byte or word mode.
• The address passed to this function should be based on the data memory mapping for the utility ROM, as shown

in Figure 2-4 and Figure 2-5 . When a byte mode address is used, CDA0 must be set appropriately to access either
the upper or lower half of program flash/ROM memory .

• This function automatically refreshes the data pointer before reading the byte/word value.

15.2.8 UROM_moveFPinc

in Figure 2-4 and Figure 2-5 . When a byte mode address is used, CDA0 must be set appropriately to access either
the upper or lower half of program flash/ROM memory .

• This function automatically refreshes the data pointer before reading the byte/word value.

15.2.9 UROM_moveFPdec

in Figure 2-4 and Figure 2-5 . When a byte mode address is used, CDA0 must be set appropriately to access either
the upper or lower half of program flash/ROM memory .

• This function automatically refreshes the data pointer before reading the byte/word value.

Function:

UROM_moveFP

Summary:

Lookup table access using BP[OFFS] .

Inputs:

BP[OFFS]: Location to read from in data space .

Outputs:

GR: Data byte/word read .

Destroys:

None .

Function:

UROM_moveFPdec

Summary:

Lookup table access using BP[OFFS], then decrements OFFS .

Inputs:

BP[OFFS]: Location to read from in data space .

Outputs:

GR: Data byte/word read .
OFFS is decremented .

Destroys:

None .

Function:

UROM_moveFPinc

Summary:

Lookup table access using BP[OFFS], then increments OFFS .

Inputs:

BP[OFFS]: Location to read from in data space .

Outputs:

GR: Data byte/word read .
OFFS is incremented .

Destroys:

None .