Maxim Integrated 21-5
MAX31782 User’s Guide
Revision 0; 8/11
21.3.1 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 21-1. When a byte mode address is used, CDA0 must be set appropriately to access either the upper or
lower half of program flash memory.
• This function automatically selects DP[0] as the data pointer before reading the byte/word value.
• Implemented as: move GR, @DP[0]
21.3.2 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 21-1. When a byte mode address is used, CDA0 must be set appropriately to access either the upper or
lower half of program flash memory.
• This function automatically selects DP[0] as the data pointer before reading the byte/word value.
• Implemented as: move GR, @DP[0]++
21.3.3 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 21-1. When a byte mode address is used, CDA0 must be set appropriately to access either the upper or
lower half of program flash memory.
• This function automatically selects DP[0] as the data pointer before reading the byte/word value.
• Implemented as: move GR, @DP[0]--
Function
UROM_moveDP0
Summary Reads the byte/word value pointed to by
DP[0].
Inputs DP[0]: Address to read from data space (include 8000h offset if reading from flash).
Outputs
GR: Data byte/word
read.
Destroys
None
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 data space (include 8000h offset if reading from flash).
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 data space (include 8000h offset if reading from flash).
Outputs
GR: Data byte/word
read.
DP[0] is
decremented.
Destroys
None
(26 Seiten)
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