MC9S12T64 Datasheet, PDF (212/608 Pages) Motorola, Inc – Specification

Freescale Semiconductor, Inc.
Flash EEPROM 64K
Trying to alter any of the protected areas will result in a protect violation
error and bit PVIOL will be set in the Flash Status Register FSTAT. A
mass erase of a whole Flash block is only possible when protection is
fully disabled by setting FPLDIS and FPHDIS bits.
FPOPEN — Opens the Flash for program or erase.
1 = The Flash sectors not protected are enabled for program or
erase.
0 = The whole Flash array is protected. In this case the FPHDIS,
FPHS[1:0], FPLDIS and FPLS[1:0] bits within the protection
register are don’t care.
FPHDIS — Flash Protection Higher address range Disable
The FPHDIS bit determines whether there is a protected area in the
higher space of the Flash address map.
1 = Protection disabled
0 = Protection enabled
FPHS[1:0] — Flash Protection Higher Address Size
The FPHS[1:0] bits determine the size of the protected sector. Refer to
Table 43.
Table 43 Higher Address Range Protection
FPHS[1:0]
00
01
10
11
Protected Address Range
Block 0
Block 1
$F800–$FFFF
$7800–$7FFF
$F000–$FFFF
$7000–$7FFF
$E000–$FFFF
$6000–$7FFF
$C000–$FFFF
$4000–$7FFF
Protected Size
(Bytes)
2K
4K
8K
16K
FPLDIS — Flash Protection Lower address range Disable
The FPLDIS bit determines whether there is a protected sector in the
lower space of the Flash address map.
1 = Protection disabled
0 = Protection enabled
MC9S12T64Revision 1.1.1
Flash EEPROM 64K
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