MAP_A and MAP_B roughly equate to using alternate function 1 (AF1) and alternate function 2 (AF2). However other mappings are possible from what is defined in the SDK. For example, you could create a mapping with your name, for example, MAP_MYNAMEISBOB for SPI1 that has this mapping:
MISO: P0.10 (AF1)
MOSI: P0.1 (AF2)
SCK: P0.12 (AF1)
SS: P0.3 (AF2)
The SDK does not enumerate all possible mappings. Although it wouldn’t be too long of a list for the MAX32660 (for example, there are 16 possible combinations for SPI1), the number of combinations for our other larger micros becomes a bit too much to manage automatically.