mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 255

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

8.2
This section lists all inputs to the ADC12B6C block.
8.2.1
8.2.1.1
This pin serves as the analog input Channel x. It can also be configured as digital port or external trigger
for the ATD conversion.
8.2.1.2
These inputs can be configured to serve as an external trigger for the ATD conversion.
Refer to device specification for availability and connectivity of these inputs!
8.2.1.3
VRH is the high reference voltage, VRL is the low reference voltage for ATD conversion.
8.2.1.4
These pins are the power supplies for the analog circuitry of the ADC12B6C block.
8.3
This section provides a detailed description of all registers accessible in the ADC12B6C.
8.3.1
Figure 8-2
Freescale Semiconductor
Address
0x0000
0x0001
0x0002
Signal Description
Memory Map and Register Definition
ATDCTL0
ATDCTL1
ATDCTL2
gives an overview on all ADC12B6C registers.
Detailed Signal Descriptions
Module Memory Map
Name
ANx (x = 5, 4, 3, 2, 1, 0)
ETRIG3, ETRIG2, ETRIG1, ETRIG0
VRH, VRL
VDDA, VSSA
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.
W
W
W
R
R
R
ETRIGSEL
Reserved
Figure 8-2. ADC12B6C Register Summary (Sheet 1 of 2)
Bit 7
0
MC9S12VR Family Reference Manual, Rev. 2.2
Preliminary - Subject to Change Without Notice
= Unimplemented or Reserved
SRES1
AFFC
6
0
Reserved ETRIGLE
SRES0
5
0
NOTE
SMP_DIS ETRIGCH3 ETRIGCH2 ETRIGCH1 ETRIGCH0
4
0
ETRIGP
WRAP3
3
Analog-to-Digital Converter (ADC12B6CV2)
ETRIGE
WRAP2
2
WRAP1
ASCIE
1
ACMPIE
WRAP0
Bit 0
255