MC9S12C128VFU Freescale Semiconductor, MC9S12C128VFU Datasheet - Page 258
MC9S12C128VFU
Manufacturer Part Number
MC9S12C128VFU
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12C128VFU.pdf
(690 pages)
Specifications of MC9S12C128VFU
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
25MHz
Interface Type
CAN/SCI/SPI
Program Memory Type
Flash
Program Memory Size
128KB
Total Internal Ram Size
4KB
# I/os (max)
60
Number Of Timers - General Purpose
8
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/2.97V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 105C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant
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Chapter 9 Clocks and Reset Generator (CRGV4) Block Description
9.3.2.4
This register provides CRG status bits and flags.
Read: anytime
Write: refer to each bit for individual write conditions
258
Module Base + 0x0003
1. PORF is set to 1 when a power-on reset occurs. Unaffected by system reset.
2. LVRF is set to 1 when a low-voltage reset occurs. Unaffected by system reset.
LOCKIF
TRACK
Reset
PORF
LOCK
Field
LVRF
RTIF
7
6
5
4
3
2
W
R
RTIF
Real-Time Interrupt Flag — RTIF is set to 1 at the end of the RTI period. This flag can only be cleared by writing
a 1. Writing a 0 has no effect. If enabled (RTIE = 1), RTIF causes an interrupt request.
0 RTI time-out has not yet occurred.
1 RTI time-out has occurred.
Power-on Reset Flag — PORF is set to 1 when a power-on reset occurs. This flag can only be cleared by writing
a 1. Writing a 0 has no effect.
0 Power-on reset has not occurred.
1 Power-on reset has occurred.
Low-Voltage Reset Flag — If low voltage reset feature is not available (see the device overview chapter), LVRF
always reads 0. LVRF is set to 1 when a low voltage reset occurs. This flag can only be cleared by writing a 1.
Writing a 0 has no effect.
0 Low voltage reset has not occurred.
1 Low voltage reset has occurred.
PLL Lock Interrupt Flag — LOCKIF is set to 1 when LOCK status bit changes. This flag can only be cleared by
writing a 1. Writing a 0 has no effect.If enabled (LOCKIE = 1), LOCKIF causes an interrupt request.
0 No change in LOCK bit.
1 LOCK bit has changed.
Lock Status Bit — LOCK reflects the current state of PLL lock condition. This bit is cleared in self-clock mode.
Writes have no effect.
0 PLL VCO is not within the desired tolerance of the target frequency.
1 PLL VCO is within the desired tolerance of the target frequency.
Track Status Bit — TRACK reflects the current state of PLL track condition. This bit is cleared in self-clock mode.
Writes have no effect.
0 Acquisition mode status.
1 Tracking mode status.
CRG Flags Register (CRGFLG)
0
7
= Unimplemented or Reserved
Note 1
PORF
6
Figure 9-7. CRG Flag Register (CRGFLG)
Table 9-2. CRGFLG Field Descriptions
Note 2
LVRF
MC9S12C-Family / MC9S12GC-Family
5
LOCKIF
Rev 01.24
0
4
Description
LOCK
0
3
TRACK
0
2
Freescale Semiconductor
SCMIF
0
1
SCM
0
0
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