In-System Debugging—IP2022 User’s Manual 340 www.ubicom.com FCFG 1. 0010101
2. 0x00 || FCFG
3. 0x00 || FCFG Run/Break mode:
Load the FCFG register. Command
is unaffected by code-protect mode
(i.e. CP bit = 0). FERASE 1. 0010010
2. None
3. STATUS || W Break mode:
Erase flash block that includes loca-
tion addressed by address pointer.
Command is acknowledged but no
operation occurs in code-protect
mode (i.e. CP bit = 0). Command is
unaffected by flash write-protect
mode (i.e. FWP bit = 0). INITIALIZE 1. 0000101
2. FUSE0 register
3. FUSE0 register Break mode:
Load temporary FUSE0 register,
and enable selection of this register
for device control. This command is
used to override configuration block
programming of device default
parameters such as clock source,
type, etc. Always use the BREAK
and DEBUG_RESET or
RESET_ALL commands after exe-
cuting an INITIALIZE command. Table 5-1  ISD/ISP Command Set (continued) Command Name  Opcode (1.),
Operand (2.), Return Value (3.) Description