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S9S12XS256J0CAL Datasheet, PDF (240/738 Pages) Freescale Semiconductor, Inc – Microcontrollers
S12XE Clocks and Reset Generator (S12XECRGV1)
8.3 Memory Map and Registers
This section provides a detailed description of all registers accessible in the S12XECRG.
8.3.1 Module Memory Map
Figure 8-2 gives an overview on all S12XECRG registers.
Address Name
Bit 7
6
5
4
0x0000
R
SYNR
W
VCOFRQ[1:0]
R
0x0001 REFDV
W
REFFRQ[1:0]
R
0
0
0
0x0002 POSTDIV
W
R
0x0003 CRGFLG
W
RTIF
PORF
LVRF LOCKIF
R
0
0x0004 CRGINT
RTIE
W
0
LOCKIE
R
XCLKS
0
0x0005 CLKSEL
PLLSEL PSTP
W
R
0x0006 PLLCTL
W
CME
PLLON
FM1
FM0
R
0x0007 RTICTL
RTDEC
W
RTR6
RTR5
RTR4
R
0
0
0x0008 COPCTL
WCOP RSBCK
W
WRTMASK
0x0009 FORBYP2 R
0
0
0
0
W
0x000A CTCTL2 R
0
0
0
0
W
R
0x000B ARMCOP
W
0
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
2. FORBYP and CTCTL are intended for factory test purposes only.
= Unimplemented or Reserved
3
2
1
SYNDIV[5:0]
REFDIV[5:0]
POSTDIV[4:0]
LOCK
ILAF
SCMIF
0
0
SCMIE
0
PLLWAI
RTIWAI
FSTWKP PRE
PCE
RTR3
0
0
RTR2
CR2
0
RTR1
CR1
0
0
0
0
0
Bit 3
0
Bit 2
0
Bit 1
Figure 8-2. CRG Register Summary
Bit 0
SCM
0
COPWAI
SCME
RTR0
CR0
0
0
0
Bit 0
NOTE
Register Address = Base Address + Address Offset, where the Base Address
is defined at the MCU level and the Address Offset is defined at the module
level.
S12XS Family Reference Manual, Rev. 1.13
240
Freescale Semiconductor