Information
SIM memory map
Absolute
address
(hex)
Register name
Width
(in bits)
Access Reset value
Section/
page
4004_7000 System Options Register 1 (SIM_SOPT1) 32 R/W Undefined 12.2.1/260
4004_8004 System Options Register 2 (SIM_SOPT2) 32 R/W 0000_1000h 12.2.2/262
4004_800C System Options Register 4 (SIM_SOPT4) 32 R/W 0000_0000h 12.2.3/264
4004_8010 System Options Register 5 (SIM_SOPT5) 32 R/W 0000_0000h 12.2.4/267
4004_8014 System Options Register 6 (SIM_SOPT6) 32 R/W 0000_0000h 12.2.5/268
4004_8018 System Options Register 7 (SIM_SOPT7) 32 R/W 0000_0000h 12.2.6/269
4004_8024 System Device Identification Register (SIM_SDID) 32 R Undefined 12.2.7/271
4004_8028 System Clock Gating Control Register 1 (SIM_SCGC1) 32 R/W 0000_0000h 12.2.8/272
4004_802C System Clock Gating Control Register 2 (SIM_SCGC2) 32 R/W 0000_0000h 12.2.9/273
4004_8030 System Clock Gating Control Register 3 (SIM_SCGC3) 32 R/W 0000_0000h
12.2.10/
274
4004_8034 System Clock Gating Control Register 4 (SIM_SCGC4) 32 R/W 6010_0030h
12.2.11/
275
4004_8038 System Clock Gating Control Register 5 (SIM_SCGC5) 32 R/W 0004_0180h
12.2.12/
278
4004_803C System Clock Gating Control Register 6 (SIM_SCGC6) 32 R/W 4000_0001h
12.2.13/
280
4004_8040 System Clock Gating Control Register 7 (SIM_SCGC7) 32 R/W 0000_0007h
12.2.14/
282
4004_8044 System Clock Divider Register 1 (SIM_CLKDIV1) 32 R/W Undefined
12.2.15/
283
4004_8048 System Clock Divider Register 2 (SIM_CLKDIV2) 32 R/W 0000_0000h
12.2.16/
286
4004_804C Flash Configuration Register 1 (SIM_FCFG1) 32 R Undefined
12.2.17/
287
4004_8050 Flash Configuration Register 2 (SIM_FCFG2) 32 R Undefined
12.2.18/
288
4004_8054 Unique Identification Register High (SIM_UIDH) 32 R Undefined
12.2.19/
289
4004_8058 Unique Identification Register Mid-High (SIM_UIDMH) 32 R Undefined
12.2.20/
290
4004_805C Unique Identification Register Mid Low (SIM_UIDML) 32 R Undefined
12.2.21/
290
4004_8060 Unique Identification Register Low (SIM_UIDL) 32 R Undefined
12.2.22/
291
Chapter 12 System integration module (SIM)
K20 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc. 259