mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 297

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

13.2.2 System Options Register 2 (SIM_SOPT2)
The following Reset row refers to Chip POR not VLLS. Only that type of reset, or any
reset type that triggers Chip POR not VLLS, affects this register. Other reset types do not
affect this register.
Address: SIM_SOPT2 is FFFF_80C0h base + 1h offset = FFFF_80C1h
* Notes:
•
Freescale Semiconductor, Inc.
x = Undefined at reset.
RAMSIZE
Reserved
Reserved
Reset
Field
Read
7–4
2–0
Write
3
Bit
Size of RAM array
Specifies the amount of system RAM available on the device. Its reset value is loaded from IFR bits.
0000
0001
0010
0011
0100
0101
Other Reserved
This read-only bit is reserved and always has the value zero.
This bitfield is reserved.
x*
7
Reserved
8 KB
Reserved
16 KB
Reserved
32 KB
x*
6
MCF51JF128 Reference Manual, Rev. 2, 03/2011
RAMSIZE
SIM_SOPT2 field descriptions
x*
5
Preliminary
x*
4
Description
0
3
Chapter 13 System Integration Module (SIM)
x*
2
Reserved
x*
1
x*
0
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