7 urom_movebp, 8 urom_movebpinc, 9 urom_movebpdec – Maxim Integrated MAX31782 User Manual
Page 220: 7urom�movebp, 8urom�movebpinc, 9urom�movebpdec
MaximIntegrated 21-7
MAX31782 User’s Guide
Revision 0; 8/11
21.3.7UROM�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
. 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 BP[OFFS] as the data pointer before reading the byte/word value .
• Implemented as: move GR, @BP[OFFS]
21.3.8UROM�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
. 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 BP[OFFS] as the data pointer before reading the byte/word value .
• Implemented as: move GR, @BP[OFFS++]
21.3.9UROM�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
. 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 BP[OFFS] as the data pointer before reading the byte/word value .
• Implemented as: move GR, @BP[OFFS--]
Function
UROM_moveBP
Summary
Reads the byte/word value pointed to by BP[OFFS] .
Inputs
BP[OFFS]: Address to read from data space (include 8000h offset if reading from flash) .
Outputs
GR: Data byte/word read
Destroys
None .
Function
UROM_moveBPinc
Summary
Reads the byte/word value pointed to by BP[OFFS], then increments OFFS .
Inputs
BP[OFFS]: Address to read from data space (include 8000h offset if reading from flash) .
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
BP[OFFS]: Address to read from data space (include 8000h offset if reading from flash) .
Outputs
GR: Data byte/word read .
OFFS is decremented .
Destroys
None