MC9S12T64 Datasheet, PDF (204/608 Pages) Motorola, Inc – Specification

Freescale Semiconductor, Inc.
Flash EEPROM 64K
Register Memory
Map
The Flash module also contains a set of 16 control and status registers
located in address space INITRG + $100 to INITRG + $10F. In order to
accommodate two Flash blocks with a minimum register address space,
a set of registers (INITRG+$104 to INITRG+$10B) is duplicated in two
banks. The active bank is selected by the BKSEL bit in the unbanked
Flash Configuration Register (FCNFG). A summary of these registers is
given in Figure 25.
Register name
Bit 7
6
5
FCLKDIV
Read: FDIVLD
Write:
PRDIV8
FDIV5
4
FDIV4
3
FDIV3
2
FDIV2
1
FDIV1
Bit 0
Addr.
Offset
FDIV0 $0100
FSEC
Read:
Write:
KEYEN
NV6
NV5
NV4
NV3
NV2 SEC1 SEC0 _$0101
FTSTMOD
Read:
Write:
Reads to this register return unpredictable values in normal modes.
$0102
FCNFG
Read:
Write:
CBEIE
Unbanked Registers
Banked Registers
FPROT
Read:
Write:
FPOPEN
CCIE
NV6
KEYACC ⁰
FPHDIS FPHS1
0
0
FPHS0 FPLDIS
0
FPLS1
BKSEL $0103
FPLS0 $0104
FSTAT
Read:
Write:
CBEIF
CCIF
PVIOL ACCERR
0
BLANK
0
0 _$0105
FCMD
Read:
Write:
0
CMDB6 CMDB5
0
0
CMDB2
0
CMDB0 $0106
Reserved for Read:
Factory Test Write:
FADDRHI
Read:
Write:
0
FADDRLO
Read:
Write:
AB8
Reads to this register return unpredictable values.
AB15 AB14 AB13 AB12 AB11 AB10
AB7 AB6 AB5 AB4 AB3 AB2
$0107
AB9 $0108
AB1 $0109
= Unimplemented or reserved
Figure 25 Flash Control Register Map
MC9S12T64Revision 1.1.1
Flash EEPROM 64K
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