Maxim-integrated MAXQ Family Users Guide: MAXQ8913 Supplement Manual do Utilizador descarregar pdf (Página 103)

MAXQ Family User’s Guide:

MAXQ8913 Supplement

25-4

25.3.1 UROM_moveDP0

Notes:

• Before calling this function, DPC should be set appropriately to configure DP[0] 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 25-1. 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.

25.3.2 UROM_moveDP0inc

Notes:

• Before calling this function, DPC should be set appropriately to configure DP[0] 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 25-1. 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.

25.3.3 UROM_moveDP0dec

Notes:

• Before calling this function, DPC should be set appropriately to configure DP[0] 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 25-1. 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_moveDP0inc

Summary:

Reads the byte/word value pointed to by DP[0], then increments DP[0].

Inputs:

DP[0]: Address to read from.

Outputs:

GR: Data byte/word read.

DP[0] is incremented.

Destroys:

None.

Function:

UROM_moveDP0dec

Summary:

Reads the byte/word value pointed to by DP[0], then decrements DP[0].

Inputs:

DP[0]: Address to read from.

Outputs:

GR: Data byte/word read.

DP[0] is decremented.

Destroys:

None.

Function:

UROM_moveDP0

Summary:

Reads the byte/word value pointed to by DP[0].

Inputs:

DP[0]: Address to read from.

Outputs:

GR: Data byte/word read.

Destroys:

None.

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