Operating Mode Register
56F8322 Technical Data, Rev. 10.0
Freescale Semiconductor 79
Preliminary
6.4 Operating Mode Register
Figure 6-1 OMR
The reset state for the MB bit will depend on the Flash secured state. See Section4.2 and Part 7 for
detailed information on how the Operating Mode Register (OMR) MA and MB bits operate in this device.
The EX bit is not functional in this device since there i s no external memory interface. For all other bits,
see the 56F8300 Peripheral User Manual.
Note: The OMR is not a Memory Map register; it is directly accessible in code through the acronym OMR.
6.5 Register Descriptions
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
NL CM XP SD R SA EX 0MB MA
Type R/W R/W R/W R/W R/W R/W R/W R/W R/W
RESET 00000 000000000X0
Table 6-1 SIM Registers
(SIM_BASE = $00 F350)
Address Offset Address Acronym Register Name Section Location
Base + $0 SIM_CONTROL Control Register 6.5.1
Base + $1 SIM_RSTSTS Reset Status Register 6.5.2
Base + $2 SIM_SCR0 Software Control Register 0 6.5.3
Base + $3 SIM_SCR1 Software Control Register 1 6.5.3
Base + $4 SIM_SCR2 Software Control Register 2 6.5.3
Base + $5 SIM_SCR3 Software Control Register 3 6.5.3
Base + $6 SIM_MSH_ID Most Significant Half of JTAG ID 6.5.4
Base + $7 SIM_LSH_ID Least Significant Half of JTAG ID 6.5.5
Base + $8 SIM_PUDR Pull-u p Disable Register 6.5.6
Reserved
Base + $A SIM_CLKOSR CLKO Se lect Register 6.5.7
Base + $B SIM_GPS GPIO Peripheral Select Register 6.5.8
Base + $C SIM_PCE Peripheral Clock Enable Register 6.5.9
Base + $D SIM_ISALH I/O Short Address Location High Register 6.5.10
Base + $E SIM_ISALL I/O Short Address Location Low Register 6.5.10