MC9S12XET256CAG Freescale Semiconductor, MC9S12XET256CAG Datasheet - Page 512

• Manufacturer Part Number: MC9S12XET256CAG
• Description: MCU 16BIT 256K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XET256CAG

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 119
• 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): 1.72 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Processor Series: S12XE
• Core: HCS12
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 13 Analog-to-Digital Converter (ADC12B16CV1)
512
ETRIGCH[3:0]
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
SMP_DIS
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
Field
3–0
4
1. Only if ETRIG3-0 input option is available (see device specification), else ETRISEL is ignored, that means
ETRIGSEL
external trigger source is still on one of the AD channels selected by ETRIGCH3-0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
Discharge Before Sampling Bit
0 No discharge before sampling.
1 The internal sample capacitor is discharged before sampling the channel. This adds 2 ATD clock cycles to
External Trigger Channel Select — These bits select one of the AD channels or one of the ETRIG3-0 inputs
as source for the external trigger. The coding is summarized in
the sampling time. This can help to detect an open circuit instead of measuring the previous sampled
channel.
ETRIGCH3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
1
Table 13-4. ATDCTL1 Field Descriptions (continued)
Table 13-6. External Trigger Channel Select Coding
SRES1
0
0
1
1
MC9S12XE-Family Reference Manual , Rev. 1.23
ETRIGCH2
Table 13-5. A/D Resolution Coding
X
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
SRES0
0
1
0
1
ETRIGCH1
X
X
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Description
ETRIGCH0
A/D Resolution
X
X
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
10-bit data
12-bit data
Reserved
8-bit data
Table
13-6.
External trigger source is
ETRIG0
Reserved
Reserved
ETRIG1
ETRIG2
ETRIG3
AN10
AN11
AN12
AN13
AN14
AN15
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
Freescale Semiconductor
(1)
1
1
1