MC9S12P32CFT Freescale Semiconductor, MC9S12P32CFT Datasheet - Page 360

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MC9S12P32CFT

Manufacturer Part Number
MC9S12P32CFT
Description
MCU 16BIT 32K FLASH 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet

Specifications of MC9S12P32CFT

Core Processor
HCS12
Core Size
16-Bit
Speed
32MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.72 V ~ 5.5 V
Data Converters
A/D 10x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-QFN Exposed Pad
Processor Series
S12P
Core
HCS12
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
KIT33812ECUEVME, DEMO9S12PFAME
Package
48QFN EP
Family Name
HCS12
Maximum Speed
32 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
16 Bit
Interface Type
CAN/SCI/SPI
On-chip Adc
10-chx12-bit
Number Of Timers
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Pulse-Width Modulator (PWM8B6CV1) Block Description
As an example of a center aligned output, consider the following case:
Shown below is the output waveform generated.
10.4.2.7
The PWM timer also has the option of generating 6-channels of 8-bits or 3-channels of 16-bits for greater
PWM resolution}. This 16-bit channel option is achieved through the concatenation of two 8-bit channels.
The PWMCTL register contains three control bits, each of which is used to concatenate a pair of PWM
channels into one 16-bit channel. Channels 4 and 5 are concatenated with the CON45 bit, channels 2 and 3
are concatenated with the CON23 bit, and channels 0 and 1 are concatenated with the CON01 bit.
When channels 4 and 5 are concatenated, channel 4 registers become the high-order bytes of the double
byte channel as shown in
registers become the high-order bytes of the double byte channel. When channels 0 and 1 are concatenated,
channel 0 registers become the high-order bytes of the double byte channel.
360
E = 100 ns
PWMx duty cycle (high time as a% of period):
— Polarity = 0 (PPOLx = 0)
— Polarity = 1 (PPOLx = 1)
Clock source = bus clock, where bus clock = 10 MHz (100 ns period)
PPOLx = 0
PWMPERx = 4
PWMDTYx = 1
PWMx frequency = 10 MHz/8 = 1.25 MHz
PWMx period = 800 ns
PWMx duty cycle = 3/4 *100% = 75%
Duty cycle = [(PWMPERx-PWMDTYx)/PWMPERx] * 100%
Duty cycle = [PWMDTYx / PWMPERx] * 100%
PWM 16-Bit Functions
Change these bits only when both corresponding channels are disabled.
Figure 10-39. PWM Center Aligned Output Example Waveform
Figure
10-40. Similarly, when channels 2 and 3 are concatenated, channel 2
S12P-Family Reference Manual, Rev. 1.13
DUTY CYCLE = 75%
PERIOD = 800 ns
NOTE
Freescale Semiconductor
E = 100 ns

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