Maxim-integrated MAXQ622 Manual do Utilizador descarregar pdf (Página 242)

MAXQ612/MAXQ622 User’s Guide

17-6 Maxim Integrated

17.2.7 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.

17.2.8 UROM_moveFPinc

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.

17.2.9 UROM_moveFPdec

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.

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.

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