MC9S12T64 Datasheet, PDF (216/608 Pages) Motorola, Inc – Specification

Freescale Semiconductor, Inc.
Flash EEPROM 64K
FCMD — Flash
Command
Register
The FCMD register defines the Flash commands. This register is
banked.
Address Offset: $0106
Bit 7
Read: 0
Write:
Reset: 0
6
5
4
0
CMDB6 CMDB5
0
0
0
= Reserved or unimplemented
3
2
1
Bit 0
0
0
CMDB2
CMDB0
0
0
0
0
Read: Anytime
Write: Only writable during a command sequence
CMDB6, 5, 2 and 0 — Valid Flash User mode commands are shown in
Table 45. Any command other than those mentioned in Table 45 sets
the ACCERR bit in the FSTAT register.
Command
$05
$20
$40
$41
other
Table 45 Valid User Mode Commands
Meaning
Erase Verify
Memory
Program
Sector Erase
Mass Erase
Illegal
Remarks
Verify all memory bytes of the Flash block are
erased.
If the array is erased the BLANK bit will set in
the FSTAT register upon command completion.
Program a word (two bytes)
Erase 512 bytes of Flash
Erase all the Flash array of the Flash block.
A mass erase of the full block is only possible
when FPLDIS, FPHDIS and FPOPEN are set.
Generate an access error
MC9S12T64Revision 1.1.1
Flash EEPROM 64K
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