MC908GP32CPE Freescale Semiconductor, MC908GP32CPE Datasheet - Page 58

• Manufacturer Part Number: MC908GP32CPE
• Description: IC MCU 8MHZ 32K FLASH 40-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908GP32CPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 33
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Processor Series: HC08GP
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Analog-to-Digital Converter (ADC)
4.7.2 ADC Data Register
One 8-bit result register, ADC data register (ADR), is provided. This register is updated each time an ADC
conversion completes.
4.7.3 ADC Clock Register
The ADC clock register (ADCLK) selects the clock frequency for the ADC.
ADIV2–ADIV0 — ADC Clock Prescaler Bits
58
ADIV2–ADIV0 form a 3-bit field which selects the divide ratio used by the ADC to generate the internal
ADC clock.
approximately 1 MHz.
Address:
Address:
Table 4-2
Reset:
Reset:
Read:
Read:
Write:
Write:
$003D
$003E
ADIV2
X = don’t care
Bit 7
AD7
Bit 7
0
0
shows the available clock configurations. The ADC clock should be set to
ADIV2
0
0
0
0
1
Figure 4-4. ADC Clock Register (ADCLK)
= Unimplemented
= Unimplemented
ADIV1
Figure 4-3. ADC Data Register (ADR)
AD6
6
0
6
0
Table 4-2. ADC Clock Divide Ratio
MC68HC908GP32 Data Sheet, Rev. 10
ADIV1
X
0
0
1
1
ADIV0
AD5
5
0
5
0
ADIV0
0
1
0
1
X
ADICLK
AD4
4
0
4
0
ADC input clock ÷ 1
ADC input clock ÷ 2
ADC input clock ÷ 4
ADC input clock ÷ 8
ADC input clock ÷ 16
AD3
3
0
3
0
0
ADC Clock Rate
AD2
2
0
2
0
0
AD1
1
0
1
0
0
Freescale Semiconductor
Bit 0
AD0
Bit 0
0
0
0