DEMO9S12XEP100 Freescale Semiconductor, DEMO9S12XEP100 Datasheet - Page 877
DEMO9S12XEP100
Manufacturer Part Number
DEMO9S12XEP100
Description
BOARD DEMO FOR MC9S12XEP100
Manufacturer
Freescale Semiconductor
Type
MCUr
Datasheet
1.EVB9S12XEP100.pdf
(1328 pages)
Specifications of DEMO9S12XEP100
Contents
Board, Cables, CD
Processor To Be Evaluated
MC9S12XEP100
Data Bus Width
16 bit
Interface Type
RS-232
Silicon Manufacturer
Freescale
Core Architecture
S12
Core Sub-architecture
S12
Silicon Core Number
MC9S12
Silicon Family Name
S12XE
Rohs Compliant
Yes
For Use With/related Products
MC9S12XEP100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DEMO9S12XEP100
Manufacturer:
PANASONIC
Quantity:
46 000
Company:
Part Number:
DEMO9S12XEP100
Manufacturer:
Freescale Semiconductor
Quantity:
135
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24.4.2.10 Unsecure Flash Command
The Unsecure Flash command will erase the entire P-Flash and D-Flash memory space and, if the erase is
successful, will release security.
Upon clearing CCIF to launch the Unsecure Flash command, the Memory Controller will erase the entire
P-Flash and D-Flash memory space and verify that it is erased. If the Memory Controller verifies that the
entire Flash memory space was properly erased, security will be released. If the erase verify is not
successful, the Unsecure Flash operation sets MGSTAT1 and terminates without changing the security
state. During the execution of this command (CCIF=0) the user must not write to any Flash module
register. The CCIF flag is set after the Unsecure Flash operation has completed.
24.4.2.11 Verify Backdoor Access Key Command
The Verify Backdoor Access Key command will only execute if it is enabled by the KEYEN bits in the
FSEC register (see
supplied keys match those stored in the Flash security bytes of the Flash configuration field (see
3). The Verify Backdoor Access Key command must not be executed from the Flash block containing the
backdoor comparison key to avoid code runaway.
Freescale Semiconductor
1. As found in the memory map for FTM256K2.
FERSTAT
Register
FSTAT
Table 24-53. Verify Backdoor Access Key Command FCCOB Requirements
Table
CCOBIX[2:0]
CCOBIX[2:0]
Table 24-51. Unsecure Flash Command FCCOB Requirements
MGSTAT1
MGSTAT0
EPVIOLIF
ACCERR
Error Bit
FPVIOL
000
000
001
010
Table 24-52. Unsecure Flash Command Error Handling
24-11). The Verify Backdoor Access Key command releases security if user-
MC9S12XE-Family Reference Manual , Rev. 1.23
Set if CCOBIX[2:0] != 000 at command launch
Set if command not available in current mode (see
Set if any area of the P-Flash memory is protected
Set if any errors have been encountered during the verify operation
Set if any non-correctable errors have been encountered during the verify
operation
Set if any area of the buffer RAM EEE partition is protected
1
0x0C
0x0B
FCCOB Parameters
FCCOB Parameters
Key 0
Key 1
Error Condition
Chapter 24 128 KByte Flash Module (S12XFTM128K2V1)
Not required
Not required
Table
24-30)
(1)
Table 24-
877
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