881
On-Chip Debug Unit
Chapter 28
Preliminary User’s Manual U17566EE1V2UM00
(2)
RSUDISCP - RSUDISC write protection register
The 8-bit RSUDISCP register protects the register RSUDISC from inadvertent
write access.
After data has been written to the RSUDISCP register, the first write access to
register RSUDISC is valid. All subsequent write accesses are ignored. Thus,
the value of RSUDISC can only be rewritten in a specified sequence, and
illegal write access is inhibited.
Access
This register can only be written in 8-bit units.
Address
FFFF FCA4
H
Initial Value
The contents of this register is undefined.
After writing to the RSUDISCP register, you are permitted to write once to
RSUDISC. The write access to RSUDISC must happen with the immediately
following instruction.
7
6
5
4
3
2
1
0
X
X
X
X
X
X
X
X
W
W
W
W
W
W
W
W
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