Datasheet

Chapter 27 512 Kbyte Flash Module (S12XFTX512K4V2)
MC9S12XDP512 Data Sheet, Rev. 2.21
1112 Freescale Semiconductor
The Flash module also contains a set of 16 control and status registers located between module base +
0x0000 and 0x000F. A summary of the Flash module registers is given in Table 27-2 while their
accessibility is detailed in Section 27.3.2, “Register Descriptions”.
Table 27-2. Flash Register Map
Module
Base +
Register Name
Normal Mode
Access
0x0000 Flash Clock Divider Register (FCLKDIV) R/W
0x0001 Flash Security Register (FSEC) R
0x0002 Flash Test Mode Register (FTSTMOD) R/W
0x0003 Flash Configuration Register (FCNFG) R/W
0x0004 Flash Protection Register (FPROT) R/W
0x0005 Flash Status Register (FSTAT) R/W
0x0006 Flash Command Register (FCMD) R/W
0x0007 Flash Control Register (FCTL) R
0x0008 Flash High Address Register (FADDRHI)
1
R
0x0009 Flash Low Address Register (FADDRLO)
1
R
0x000A Flash High Data Register (FDATAHI) R
0x000B Flash Low Data Register (FDATALO) R
0x000C RESERVED1
1
R
0x000D RESERVED2
1
R
0x000E RESERVED3
1
R
0x000F RESERVED4
1
1 Intended for factory test purposes only.
R