saa-xc886clm Infineon Technologies Corporation, saa-xc886clm Datasheet - Page 34
saa-xc886clm
Manufacturer Part Number
saa-xc886clm
Description
8-bit Single Chip Microcontroller
Manufacturer
Infineon Technologies Corporation
Datasheet
1.SAA-XC886CLM.pdf
(134 pages)
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3.2.3.1
PASSWD
Password Register
Field
MODE
PROTECT_S
PASS
Data Sheet
7
Password Register
6
Bits
[1:0]
2
[7:3]
PASS
wh
5
Type Description
rw
rh
wh
Bit Protection Scheme Control Bits
00
11
Others:Scheme Enabled.
These two bits cannot be written directly. To change
the value between 11
must be written with 11000
MODE[1:0] be registered.
Bit Protection Signal Status Bit
This bit shows the status of the protection.
0
1
Password Bits
The Bit Protection Scheme only recognizes three
patterns.
11000
10011
10101
4
Scheme disabled - direct access to the
protected bits is allowed.
Scheme enabled - the bit field PASS has to be
written with the passwords to open and close
the access to protected bits. (default)
Software is able to write to all protected bits.
Software is unable to write to any protected
bits.
B
B
B
Enables writing of the bit field MODE.
Opens access to writing of all protected bits.
Closes access to writing of all protected bits
27
3
PROTECT
B
and 00
_S
rh
2
B
; only then, will the
Functional Description
B
, the bit field PASS
SAA-XC886CLM
Reset Value: 07
1
MODE
V1.0, 2009-09
rw
0
H
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