MC68HRC98JK3ECDW Freescale Semiconductor, MC68HRC98JK3ECDW Datasheet - Page 102

• Manufacturer Part Number: MC68HRC98JK3ECDW
• Description: IC MCU 4K FLASH 8MHZ 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HRC98JK3ECDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 15
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -

Analog-to-Digital Converter (ADC)
9.7.2 ADC Data Register
One 8-bit result register is provided. This register is updated each time an ADC conversion completes.
9.7.3 ADC Input Clock Register
This register selects the clock frequency for the ADC
ADIV[2:0] — ADC Clock Prescaler Bits
102
ADIV[2:0] form a 3-bit field which selects the divide ratio used by the ADC to generate the internal ADC
clock.
approximately 1MHz.
Table 9-2
Address:
Address:
X = don’t care
Reset:
Reset:
Read:
Read:
Write:
Write:
ADIV2
0
0
0
0
1
shows the available clock configurations. The ADC clock should be set to
$003D
$003E
ADIV2
Bit 7
AD7
Bit 7
0
Figure 9-5. ADC Input Clock Register (ADICLK)
ADIV1
= Unimplemented
= Unimplemented
ADIV1
X
0
0
1
1
Figure 9-4. ADC Data Register (ADR)
AD6
MC68HC908JL3E Family Data Sheet, Rev. 4
6
6
0
Table 9-2. ADC Clock Divide Ratio
ADIV0
AD5
5
5
0
ADIV0
X
0
1
0
1
Indeterminate after reset
AD4
4
4
0
0
AD3
ADC Input Clock ÷ 1
ADC Input Clock ÷ 2
ADC Input Clock ÷ 4
ADC Input Clock ÷ 8
ADC Input Clock ÷ 16
3
3
0
0
ADC Clock Rate
AD2
2
2
0
0
AD1
1
1
0
0
Freescale Semiconductor
Bit 0
AD0
Bit 0
0
0