Maxim-integrated MAXQ Family Users Guide: MAXQ2010 Supplement Bedienungsanleitung PDF herunterladen (Seite 140)

MAXQ Family User’s Guide:

MAXQ2010 Supplement

24-6

24.3.7 UROM_moveBP

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 24-1. 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.

24.3.8 UROM_moveBPinc

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 24-1. 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 refreshed the data pointer before reading the byte/word value.

24.3.9 UROM_moveBPdec

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 24-1. 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_moveBPinc

Summary:

Reads the byte/word value pointed to by BP[OFFS], then increments OFFS.

Inputs:

DP[1]: Address to read from.

Outputs:

GR: Data byte/word read.

OFFS is incremented.

Destroys:

None.

Function:

UROM_moveBPdec

Summary:

Reads the byte/word value pointed to by BP[OFFS], then decrements OFFS.

Inputs:

DP[1]: Address to read from.

Outputs:

GR: Data byte/word read.

OFFS is decremented.

Destroys:

None.

Function:

UROM_moveBP

Summary:

Reads the byte/word value pointed to by BP[OFFS].

Inputs:

BP[OFFS]: Address to read from.

Outputs:

GR: Data byte/word read.

Destroys:

None.

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