Samsung S5PC110 Manual page 489

S5PC110_UM
By writing the passwords in predefined sequence, the authentication can be done. After authentication, the
authentication signals are selectively asserted as defined in
Mode
JTAG unplugged
non-protected mode secure
invasive
JTAG and authenticated as
secure invasive
JTAG and authenticated as
secure non-invasive
JTAG and authenticated as
non-secure invasive
JTAG and authenticated as
non-secure non-invasive
JTAG and non-
authenticated
The authentication sequence script and the hash key generation program will be provided to the customer.
Table 2-1 Authentication Signal Rule
JTAG JTAG
Detect lock on
0 X
1 0
1 1
1 1
1 1
1 1
1 1
Table 2-1.
Access
DBGEN
Level
X 0
X 1
4 1
3 1
2 1
1 0
0 0
2 CORESIGHT
NIDEN SPIDEN
0 0
1 1
1 1
1 0
1 0
1 0
0 0
SPNIDEN
0
1
1
1
0
0
0
2-6