MC9S12C128MFAE Freescale Semiconductor, MC9S12C128MFAE Datasheet - Page 260
![IC MCU 128K FLASH 25MHZ 48-LQFP](/photos/12/20/122066/mc9s12c128mfae_sml.jpg)
MC9S12C128MFAE
Manufacturer Part Number
MC9S12C128MFAE
Description
IC MCU 128K FLASH 25MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Specifications of MC9S12C128MFAE
Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
CAN, EBI/EMI, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
31
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
S12C
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
4 KB
Interface Type
CAN/SCI/SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
31
Number Of Timers
8
Operating Supply Voltage
3.3 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
M68EVB912C32EE
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Package
48LQFP
Family Name
HCS12
Maximum Speed
25 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12C128MFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 9 Clocks and Reset Generator (CRGV4) Block Description
9.3.2.6
This register controls CRG clock selection. Refer to
Read: anytime
Write: refer to each bit for individual write conditions
260
Module Base + 0x0005
ROAWAI
SYSWAI
PLLSEL
PLLWAI
Reset
PSTP
Field
7
6
5
4
3
W
R
PLLSEL
PLL Select Bit — Write anytime. Writing a 1 when LOCK = 0 and AUTO = 1, or TRACK = 0 and AUTO = 0 has
no effect. This prevents the selection of an unstable PLLCLK as SYSCLK. PLLSEL bit is cleared when the MCU
enters self-clock mode, stop mode or wait mode with PLLWAI bit set.
0 System clocks are derived from OSCCLK (Bus Clock = OSCCLK / 2).
1 System clocks are derived from PLLCLK (Bus Clock = PLLCLK / 2).
Pseudo-Stop Bit — Write: anytime — This bit controls the functionality of the oscillator during stop mode.
0 Oscillator is disabled in stop mode.
1 Oscillator continues to run in stop mode (pseudo-stop). The oscillator amplitude is reduced. Refer to oscillator
Note: Pseudo-stop allows for faster stop recovery and reduces the mechanical stress and aging of the resonator
Note: Lower oscillator amplitude exhibits lower power consumption but could have adverse effects during any
System Clocks Stop in Wait Mode Bit — Write: anytime
0 In wait mode, the system clocks continue to run.
1 In wait mode, the system clocks stop.
Note: RTI and COP are not affected by SYSWAI bit.
Reduced Oscillator Amplitude in Wait Mode Bit — Write: anytime — Refer to oscillator block description
chapter for availability of a reduced oscillator amplitude. If no such feature exists in the oscillator block then
setting this bit to 1 will not have any effect on power consumption.
0 Normal oscillator amplitude in wait mode.
1 Reduced oscillator amplitude in wait mode.
Note: Lower oscillator amplitude exhibits lower power consumption but could have adverse effects during any
PLL Stops in Wait Mode Bit — Write: anytime — If PLLWAI is set, the CRGV4 will clear the PLLSEL bit before
entering wait mode. The PLLON bit remains set during wait mode but the PLL is powered down. Upon exiting
wait mode, the PLLSEL bit has to be set manually if PLL clock is required.
While the PLLWAI bit is set the AUTO bit is set to 1 in order to allow the PLL to automatically lock on the selected
target frequency after exiting wait mode.
0 PLL keeps running in wait mode.
1 PLL stops in wait mode.
CRG Clock Select Register (CLKSEL)
0
7
block description for availability of a reduced oscillator amplitude.
in case of frequent stop conditions at the expense of a slightly increased power consumption.
electro-magnetic susceptibility (EMS) tests.
electro-magnetic susceptibility (EMS) tests.
PSTP
0
6
Figure 9-9. CRG Clock Select Register (CLKSEL)
Table 9-4. CLKSEL Field Descriptions
SYSWAI
MC9S12C-Family / MC9S12GC-Family
0
5
ROAWAI
Rev 01.24
0
4
Figure 9-17
Description
PLLWAI
0
3
for details on the effect of each bit.
CWAI
0
2
RTIWAI
Freescale Semiconductor
0
1
COPWAI
0
0
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