MC9S12E256VPVE Freescale Semiconductor, MC9S12E256VPVE Datasheet - Page 343

• Manufacturer Part Number: MC9S12E256VPVE
• Description: IC MCU 256K FLASH 25MHZ 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12E256VPVE

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 91
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 2.75 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 112-LQFP
• Processor Series: S12E
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C/SCI/SPI
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 92
• Number Of Timers: 12
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16-ch x 10-bit
• On-chip Dac: 2-ch x 8-bit
• For Use With: M68EVB912E128 - BOARD EVAL FOR MC9S12E128/64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

11.3.2.22 PMF Counter A Register (PMFCNTA)
Read anytime and writes have no effect.
11.3.2.23 PMF Counter Modulo A Register (PMFMODA)
Read and write anytime.
Freescale Semiconductor
Module Base + 0x0022
Module Base + 0x0024
PMFMODA
PMFCNTA
Reset
Reset
Field
Field
14–0
14–0
W
W
R
R
15
15
0
0
0
0
PMF Counter A Bits — This register displays the state of the 15-bit PWM A counter.
PMF Counter Modulo A Bits — The 15-bit unsigned value written to this register is the PWM period in PWM
clock periods. Do not write a modulus value of zero.
Note: The PWM counter modulo register is buffered. The value written does not take effect until the LDOKA bit
= Unimplemented or Reserved
= Unimplemented or Reserved
14
14
0
0
is set and the next PWM load cycle begins. Reading PMFMODA reads the value in the buffer. It is not
necessarily the value the PWM generator A is currently using.
13
13
0
0
Figure 11-29. PMF Counter Modulo A Register (PMFMODA)
Figure 11-28. PMF Counter A Register (PMFCNTA)
12
12
0
0
Table 11-30. PMFMODA Field Descriptions
Table 11-29. PMFCNTA Field Descriptions
PRSCA
11
11
00
01
10
11
0
0
MC9S12E256 Data Sheet, Rev. 1.08
Table 11-28. PWM Prescaler A
10
10
0
0
0
0
9
9
Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
0
0
8
8
Description
Description
PWM Clock Frequency
PMFMODA
PMFCNTA
0
0
7
7
f
f
f
bus
bus
bus
f
bus
0
0
/2
/4
/8
6
6
0
0
5
5
4
0
4
0
0
0
3
3
0
0
2
2
0
0
1
1
0
0
0
0
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