S9S12XS256J0CAL Freescale Semiconductor, S9S12XS256J0CAL Datasheet - Page 374

• Manufacturer Part Number: S9S12XS256J0CAL
• Description: MCU 256K FLASH 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of S9S12XS256J0CAL

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: CAN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 91
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 8K x 8
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 1.72 V ~ 5.5 V
• Data Converters: A/D 16x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Processor Series: S12XS
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 12 KB
• Interface Type: CAN, SCI, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 12
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: DEMO9S12XSFAME, EVB9S12XEP100
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pulse-Width Modulator (S12PWM8B8CV1)
Read: Anytime
Write: Anytime
374
Module Base + 0x0003
PCKB[2:0]
PCKA[2:0]
s
Reset
Field
6–4
2–0
W
R
Prescaler Select for Clock B — Clock B is one of two clock sources which can be used for channels 2, 3, 6, or
7. These three bits determine the rate of clock B, as shown in
Prescaler Select for Clock A — Clock A is one of two clock sources which can be used for channels 0, 1, 4 or
5. These three bits determine the rate of clock A, as shown in
0
0
7
PCKB2–0 and PCKA2–0 register bits can be written anytime. If the clock
pre-scale is changed while a PWM signal is being generated, a truncated or
stretched pulse can occur during the transition.
= Unimplemented or Reserved
Figure 13-6. PWM Prescale Clock Select Register (PWMPRCLK)
PCKB2
PCKB2
PCKA2
0
6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Table 13-4. PWMPRCLK Field Descriptions
S12XS Family Reference Manual, Rev. 1.11
Table 13-5. Clock B Prescaler Selects
Table 13-6. Clock A Prescaler Selects
PCKB1
PCKB1
0
PCKA1
5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
PCKB0
NOTE
PCKB0
0
4
PCKA0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Description
0
0
3
Value of Clock B
Value of Clock A
Table
Table
Bus clock / 128
Bus clock / 128
Bus clock / 16
Bus clock / 32
Bus clock / 16
Bus clock / 32
Bus clock / 64
Bus clock / 64
Bus clock / 2
Bus clock / 4
Bus clock / 8
Bus clock / 2
Bus clock / 4
Bus clock / 8
Bus clock
Bus clock
13-5.
13-6.
PCKA2
0
2
PCKA1
Freescale Semiconductor
0
1
PCKA0
0
0