8.14.1.1 Memory Access Mode

The access mode attributes set whether No value for GDBN may make read or write accesses to a memory region.

While these attributes prevent No value for GDBN from performing invalid memory accesses, they do nothing to prevent the target system, I/O DMA, etc. from accessing memory.

ro

Memory is read only.

wo

Memory is write only.

rw

Memory is read/write. This is the default.