S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 506

• Manufacturer Part Number: S912XET256J2VAGR
• Description: 16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI
• Manufacturer: Freescale Semiconductor

Specifications of S912XET256J2VAGR

• Core: HCS12X
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: LQFP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 24
• Interface Type: CAN, SCI, SPI
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 119
• Number Of Timers: 25
• Program Memory Type: Flash
• 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)
13.2
This section lists all inputs to the ADC12B16C block.
13.2.1
13.2.1.1
This pin serves as the analog input Channel x. It can also be configured as digital port or external trigger
for the ATD conversion.
13.2.1.2
These inputs can be configured to serve as an external trigger for the ATD conversion.
Refer to device specification for availability and connection of these inputs!
13.2.1.3
V
13.2.1.4
These pins are the power supplies for the analog circuitry of the ADC12B16C block.
13.3
This section provides a detailed description of all registers accessible in the ADC12B16C.
13.3.1
Figure 13-2
506
Address
0x0000
0x0001
0x0002
RH
is the high reference voltage, V
Signal Description
Memory Map and Register Definition
ATDCTL0
ATDCTL1
ATDCTL2
Detailed Signal Descriptions
Module Memory Map
Name
gives an overview on all ADC12B16C registers.
ANx (x = 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
ETRIG3, ETRIG2, ETRIG1, ETRIG0
V
V
Register Address = Base Address + Address Offset, where the Base Address
is defined at the MCU level and the Address Offset is defined at the module
level.
RH
DDA
, V
, V
W
W
W
RL
R
R
R
SSA
Figure 13-2. ADC12B16C Register Summary (Sheet 1 of 3)
ETRIGSEL
Reserved
Bit 7
0
MC9S12XE-Family Reference Manual Rev. 1.25
= Unimplemented or Reserved
SRES1
RL
AFFC
6
0
is the low reference voltage for ATD conversion.
ICLKSTP ETRIGLE
SRES0
5
0
NOTE
SMP_DIS ETRIGCH3 ETRIGCH2 ETRIGCH1 ETRIGCH0
4
0
ETRIGP
WRAP3
3
ETRIGE
WRAP2
2
Freescale Semiconductor
WRAP1
ASCIE
1
ACMPIE
WRAP0
Bit 0