MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 458

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Analog-to-Digital Converter (ADC12B16CV2)
14.3.2.6
Writes to this register will abort current conversion sequence and start a new conversion sequence. If the
external trigger function is enabled (ETRIGE=1) an initial write to ATDCTL5 is required to allow starting
of a conversion sequence which will then occur on each trigger event. Start of conversion means the
beginning of the sampling phase.
Read: Anytime
Write: Anytime
458
Module Base + 0x0005
Reset
SCAN
Field
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
SC
6
5
W
R
Special Channel Conversion Bit — If this bit is set, then special channel conversion can be selected using CD,
CC, CB and CA of ATDCTL5.
0 Special channel conversions disabled
1 Special channel conversions enabled
Continuous Conversion Sequence Mode — This bit selects whether conversion sequences are performed
continuously or only once. If the external trigger function is enabled (ETRIGE=1) setting this bit has no effect,
thus the external trigger always starts a single conversion sequence.
0 Single conversion sequence
1 Continuous conversion sequences (scan mode)
ATD Control Register 5 (ATDCTL5)
0
0
7
= Unimplemented or Reserved
SMP2
SC
0
6
1
Figure 14-8. ATD Control Register 5 (ATDCTL5)
Table 14-14. ATDCTL5 Field Descriptions
MC9S12G Family Reference Manual,
SMP1
SCAN
Table 14-13. Sample Time Select
Table 14-15
1
5
0
SMP0
lists the coding.
MULT
1
0
4
Description
ATD Clock Cycles
CD
0
3
Sample Time
in Number of
Rev.1.01
24
CC
2
0
Freescale Semiconductor
CB
0
1
CA
0
0