MC908QB4CPE Freescale Semiconductor, MC908QB4CPE Datasheet - Page 48

• Manufacturer Part Number: MC908QB4CPE
• Description: IC MCU 8BIT 4K FLASH 16-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908QB4CPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Analog-to-Digital Converter (ADC10) Module
3.8.2 ADC10 Result High Register (ADRH)
This register holds the MSBs of the result and is updated each time a conversion completes. All other bits
read as 0s. Reading ADRH prevents the ADC10 from transferring subsequent conversion results into the
result registers until ADRL is read. If ADRL is not read until the after next conversion is completed, then
the intermediate conversion result will be lost. In 8-bit mode, this register contains no interlocking with
ADRL.
3.8.3 ADC10 Result Low Register (ADRL)
This register holds the LSBs of the result. This register is updated each time a conversion completes.
Reading ADRH prevents the ADC10 from transferring subsequent conversion results into the result
registers until ADRL is read. If ADRL is not read until the after next conversion is completed, then the
intermediate conversion result will be lost. In 8-bit mode, there is no interlocking with ADRH.
48
Reset:
Reset:
Reset:
Read:
Write:
Read:
Write:
Read:
Write:
Figure 3-5. ADC10 Data Register High (ADRH), 10-Bit Mode
Figure 3-4. ADC10 Data Register High (ADRH), 8-Bit Mode
Bit 7
Bit 7
Bit 7
AD7
0
0
0
0
0
Figure 3-6. ADC10 Data Register Low (ADRL)
= Unimplemented
= Unimplemented
= Unimplemented
AD6
6
0
0
6
0
0
6
0
MC68HC908QB8 Data Sheet, Rev. 3
AD5
5
0
0
5
0
0
5
0
AD4
0
0
0
0
0
4
4
4
AD3
3
0
0
3
0
0
3
0
AD2
2
0
0
2
0
0
2
0
AD9
AD1
1
0
0
1
0
1
0
Freescale Semiconductor
Bit 0
Bit 0
AD8
Bit 0
AD0
0
0
0
0