MC9S12XDT256CAA Freescale Semiconductor, MC9S12XDT256CAA Datasheet - Page 371

• Manufacturer Part Number: MC9S12XDT256CAA
• Description: IC MCU 256K FLASH 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XDT256CAA

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 80MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 59
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Processor Series: S12XD
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: CAN/I2C/SCI/SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 59
• Number Of Timers: 12
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: EVB9S12XDP512E
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.3.2.4
This register selects the prescale clock source for clocks A and B independently.
Read: Anytime
Write: Anytime
Freescale Semiconductor
Reset
PCLK7
PCLK6
PCLK5
PCLK4
PCLK3
PCLK2
PCLK1
PCLK0
Field
7
6
5
4
3
2
1
0
W
R
Pulse Width Channel 7 Clock Select
0 Clock B is the clock source for PWM channel 7.
1 Clock SB is the clock source for PWM channel 7.
Pulse Width Channel 6 Clock Select
0 Clock B is the clock source for PWM channel 6.
1 Clock SB is the clock source for PWM channel 6.
Pulse Width Channel 5 Clock Select
0 Clock A is the clock source for PWM channel 5.
1 Clock SA is the clock source for PWM channel 5.
Pulse Width Channel 4 Clock Select
0 Clock A is the clock source for PWM channel 4.
1 Clock SA is the clock source for PWM channel 4.
Pulse Width Channel 3 Clock Select
0 Clock B is the clock source for PWM channel 3.
1 Clock SB is the clock source for PWM channel 3.
Pulse Width Channel 2 Clock Select
0 Clock B is the clock source for PWM channel 2.
1 Clock SB is the clock source for PWM channel 2.
Pulse Width Channel 1 Clock Select
0 Clock A is the clock source for PWM channel 1.
1 Clock SA is the clock source for PWM channel 1.
Pulse Width Channel 0 Clock Select
0 Clock A is the clock source for PWM channel 0.
1 Clock SA is the clock source for PWM channel 0.
PWM Prescale Clock Select Register (PWMPRCLK)
0
0
7
Register bits PCLK0 to PCLK7 can be written anytime. If a clock select is
changed while a PWM signal is being generated, a truncated or stretched
pulse can occur during the transition.
= Unimplemented or Reserved
Figure 8-6. PWM Prescale Clock Select Register (PWMPRCLK)
PCKB2
0
6
Table 8-3. PWMCLK Field Descriptions
PCKB1
MC9S12XDP512 Data Sheet, Rev. 2.21
0
5
PCKB0
NOTE
0
4
Description
0
0
3
Chapter 8 Pulse-Width Modulator (S12PWM8B8CV1)
PCKA2
0
2
PCKA1
0
1
PCKA0
0
0
371