S912XET512J3VALR Freescale Semiconductor, S912XET512J3VALR Datasheet - Page 510

Manufacturer Part Number

S912XET512J3VALR

16-bit Microcontrollers - MCU 16 BIT,512K FLASH

Manufacturer

Freescale Semiconductor

Processor Series

Data Bus Width

Maximum Clock Frequency

Program Memory Size

Data Ram Size

Operating Supply Voltage

3.13 V to 5.5 V

Operating Temperature Range

- 40 C to + 105 C

Package / Case

Mounting Style

Manufacturer

BOSTOCK HK LIMITED

Part Number:

S912XET512J3VALR

Manufacturer:

Freescale Semiconductor

Chapter 13 Analog-to-Digital Converter (ADC12B16CV1)

ETRIGCH[3:0]

1. Only if ETRIG3-0 input option is available (see device speciﬁcation), else ETRISEL is ignored, that means

external trigger source is still on one of the AD channels selected by ETRIGCH3-0

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

Table 13-4. ATDCTL1 Field Descriptions (continued)

Table 13-6. External Trigger Channel Select Coding

MC9S12XE-Family Reference Manual Rev. 1.25

Table 13-5. A/D Resolution Coding

A/D Resolution

External trigger source is

Freescale Semiconductor