S9S08SG8E2VTJR Freescale Semiconductor, S9S08SG8E2VTJR Datasheet - Page 137

• Manufacturer Part Number: S9S08SG8E2VTJR
• Description: 8-bit Microcontrollers - MCU 9S08 UC W/ 8K 0.25UM SGF
• Manufacturer: Freescale Semiconductor

Specifications of S9S08SG8E2VTJR

• Rohs: yes
• Core: HCS08
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 512 B
• On-chip Adc: Yes
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: TSSOP-20
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 12
• Interface Type: I2C, SCI, SPI
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• Program Memory Type: Flash
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 2.7 V

9.3.2
The ADCSC2 register controls the compare function, conversion trigger, and conversion active of the ADC
module.
Freescale Semiconductor
ADTRG
ADACT
Field
1
7
6
Bits 1 and 0 are reserved bits that must always be written to 0.
Reset:
W
R
Status and Control Register 2 (ADCSC2)
Conversion Active — Indicates that a conversion is in progress. ADACT is set when a conversion is initiated
and cleared when a conversion is completed or aborted.
0 Conversion not in progress
1 Conversion in progress
Conversion Trigger Select — Selects the type of trigger used for initiating a conversion. Two types of triggers
are selectable: software trigger and hardware trigger. When software trigger is selected, a conversion is initiated
following a write to ADCSC1. When hardware trigger is selected, a conversion is initiated following the assertion
of the ADHWT input.
0 Software trigger selected
1 Hardware trigger selected
ADACT
7
0
ADCH
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
= Unimplemented or Reserved
ADTRG
Figure 9-4. Status and Control Register 2 (ADCSC2)
0
6
Table 9-5. ADCSC2 Register Field Descriptions
Table 9-4. Input Channel Select (continued)
Input Select
ACFE
MC9S08SG32 Data Sheet, Rev. 8
0
5
AD10
AD11
AD12
AD13
AD14
AD15
AD4
AD5
AD6
AD7
AD8
AD9
ACFGT
0
4
Description
0
0
3
Chapter 9 Analog-to-Digital Converter (S08ADC10V1)
ADCH
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
0
0
2
R
0
1
1
Module disabled
Input Select
Reserved
V
V
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
REFH
REFL
R
0
0
1
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