BRCM-CABLEDATA-ENGINEERING-MIB Table View

This data table represents EJTAG Instruction Break configuration.
It specifies an Instruction Break for the specified channel and address
(with optional mask).  Hardware may place restrictions on the values
(e.g. bit 0 of the address is likely forced to 0, and bit 0 of the 
mask is forced to 1).
          
The default mask is 0xffffffff (all address bits relevant).  Be careful
when specifying a mask, since many values (like 0, 1, etc) can cause an
immediate break to occur.
          
The instruction break behaves according to this pseudo-code:
          
if ((ProgramCounter & Mask) == (Address & Mask))
   Generate debug exception;

This data table represents EJTAG Data Break configuration.
It specifies a data break for the specified channel, address,
and data value (with optional address and value masks).  Hardware 
may place restrictions on the values (e.g. bit 0 of the address 
is likely forced to 0, and bit 0 of the mask is forced to 1).
          
The default address mask is 0xffffffff (all address bits relevant),
and the default value mask is 0x0f (all byte lanes relevant).  Be 
careful when specifying an address mask, since many values (like 0, 
1, etc) can cause an immediate break to occur.
          
The data break behaves according to this pseudo-code:
          
if (((DataAddr & AddressMask) == (Address & AddressMask)) &&
   ((DataValue & ValueMask) == (Value & ValueMask)))
      Generate debug exception;