S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 510

Manufacturer Part Number

S912XET256J2VAGR

16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI

Manufacturer

Freescale Semiconductor

Data Bus Width

Maximum Clock Frequency

Program Memory Size

Data Ram Size

Package / Case

Mounting Style

A/d Bit Size

A/d Channels Available

Interface Type

CAN, SCI, SPI

Maximum Operating Temperature

Minimum Operating Temperature

Number Of Programmable I/os

Number Of Timers

Program Memory Type

Supply Voltage - Max

1.98 V, 2.9 V, 5.5 V

Supply Voltage - Min

1.72 V, 2.7 V, 3.13 V

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