mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 173

• Manufacturer Part Number: mc9s12e256
• Description: Hcs12 Microcontrollers 16-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

4.3.2.5
This register enables CRG interrupt requests.
Read: anytime
Write: anytime
Freescale Semiconductor
LOCKIE
SCMIE
SCMIF
Reset
Field
Field
SCM
RTIE
1
0
7
4
1
W
R
RTIE
Self-Clock Mode Interrupt Flag — SCMIF is set to 1 when SCM status bit changes. This flag can only be
cleared by writing a 1. Writing a 0 has no effect. If enabled (SCMIE=1), SCMIF causes an interrupt request.
0 No change in SCM bit.
1 SCM bit has changed.
Self-Clock Mode Status Bit — SCM reflects the current clocking mode. Writes have no effect.
0 MCU is operating normally with OSCCLK available.
1 MCU is operating in self-clock mode with OSCCLK in an unknown state. All clocks are derived from PLLCLK
Real-Time Interrupt Enable Bit
0 Interrupt requests from RTI are disabled.
1 Interrupt will be requested whenever RTIF is set.
Lock Interrupt Enable Bit
0 LOCK interrupt requests are disabled.
1 Interrupt will be requested whenever LOCKIF is set.
Self-Clock Mode Interrupt Enable Bit
0 SCM interrupt requests are disabled.
1 Interrupt will be requested whenever SCMIF is set.
CRG Interrupt Enable Register (CRGINT)
0
7
running at its minimum frequency f
= Unimplemented or Reserved
0
0
6
Figure 4-8. CRG Interrupt Enable Register (CRGINT)
Table 4-2. CRGFLG Field Descriptions (continued)
Table 4-3. CRGINT Field Descriptions
MC9S12E256 Data Sheet, Rev. 1.08
0
0
5
SCM
.
LOCKIE
0
4
Description
Description
3
0
0
Chapter 4 Clocks and Reset Generator (CRGV4)
0
0
2
SCMIE
0
1
0
0
0
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