MC908GR48AMFAE Freescale Semiconductor, MC908GR48AMFAE Datasheet - Page 66
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MC908GR48AMFAE
Manufacturer Part Number
MC908GR48AMFAE
Description
IC MCU 8BIT 48K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GR32ACFJE.pdf
(314 pages)
Specifications of MC908GR48AMFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GR48AMFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Analog-to-Digital Converter (ADC)
AIEN — ADC Interrupt Enable Bit
ADCO — ADC Continuous Conversion Bit
ADCH4–ADCH0 — ADC Channel Select Bits
The voltage levels supplied from internal reference nodes, as specified in
Table
applications.
66
When this bit is set, an interrupt is generated at the end of an ADC conversion. The interrupt signal is
cleared when the data register is read or the status/control register is written. Reset clears the AIEN bit.
When set, the ADC will convert samples continuously and update the ADR register at the end of each
conversion. Only one conversion is completed between writes to the ADSCR when this bit is cleared.
Reset clears the ADCO bit.
ADCH4–ADCH0 form a 5-bit field which is used to select one of 32 ADC channels. Only 24 channels,
AD23–AD0, are available on this MCU. The channels are detailed in
when using a port pin as both an analog and digital input simultaneously to prevent switching noise
from corrupting the analog signal. See
The ADC subsystem is turned off when the channel select bits are all set to 1. This feature allows for
reduced power consumption for the MCU when the ADC is not being used.
1 = ADC interrupt enabled
0 = ADC interrupt disabled
1 = Continuous ADC conversion
0 = One ADC conversion
3-1, are used to verify the operation of the ADC converter both in production test and for user
Recovery from the disabled state requires one conversion cycle to stabilize.
ADCH4
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ADCH3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Table 3-1. Mux Channel Select
ADCH2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Table
3-1.
ADCH1
NOTE
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
ADCH0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
(1)
Continued on next page
Table
PTA2/KBD2/AD10
PTA3/KBD3/AD11
PTA4/KBD4/AD12
PTA5/KBD5/AD13
PTA6/KBD6/AD14
PTA7/KBD7/AD15
PTA0/KBD0/AD8
PTA1/KBD1/AD9
Input Select
PTB0/AD0
PTB1/AD1
PTB2/AD2
PTB3/AD3
PTB4/AD4
PTB5/AD5
PTB6/AD6
PTB7/AD7
3-1. Care should be taken
Freescale Semiconductor
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