Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 Manuale Utente
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DEMO9S12XHY256
S12XE Clocks and Reset Generator (S12XECRGV2)
MC9S12XHY-Family Reference Manual, Rev. 1.04
276
Freescale Semiconductor
7.3.2.10
Reserved Register (FORBYP)
NOTE
This reserved register is designed for factory test purposes only, and is not
intended for general user access. Writing to this register when in special
modes can alter the S12XECRG’s functionality.
intended for general user access. Writing to this register when in special
modes can alter the S12XECRG’s functionality.
Read: Always read $00 except in special modes
Write: Only in special modes
7.3.2.11
Reserved Register (CTCTL)
NOTE
This reserved register is designed for factory test purposes only, and is not
intended for general user access. Writing to this register when in special test
modes can alter the S12XECRG’s functionality.
intended for general user access. Writing to this register when in special test
modes can alter the S12XECRG’s functionality.
Read: Always read $00 except in special modes
1
1
1
2
24
1. OSCCLK cycles are referenced from the previous COP time-out reset
(writing $55/$AA to the ARMCOP register)
Module Base + 0x0009
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 7-12. Reserved Register (FORBYP)
Module Base + 0x000A
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 7-13. Reserved Register (CTCTL)
Table 7-13. COP Watchdog Rates
(1)
CR2
CR1
CR0
OSCCLK
Cycles to Timeout