MC908GR60AMFAE Freescale Semiconductor, MC908GR60AMFAE Datasheet - Page 65
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MC908GR60AMFAE
Manufacturer Part Number
MC908GR60AMFAE
Description
IC MCU 8BIT 60K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GR32ACFJE.pdf
(314 pages)
Specifications of MC908GR60AMFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
2K 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:
MC908GR60AMFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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3.7.4 ADC Voltage Reference Low Pin (V
The ADC analog portion uses V
to the same voltage potential as V
results. Any noise present on this pin will be reflected and possibly magnified in A/D conversion values.
V
3.7.5 ADC Voltage In (V
V
3.8 I/O Registers
These I/O registers control and monitor ADC operation:
3.8.1 ADC Status and Control Register
Function of the ADC status and control register (ADSCR) is described here.
COCO — Conversions Complete Bit
Freescale Semiconductor
SSAD
ADIN
•
•
•
In non-interrupt mode (AIEN = 0), COCO is a read-only bit that is set at the end of each conversion.
COCO will stay set until cleared by a read of the ADC data register. Reset clears this bit.
In interrupt mode (AIEN = 1), COCO is a read-only bit that is not set at the end of a conversion. It
always reads as a 0.
1 = Conversion completed (AIEN = 0)
0 = Conversion not completed (AIEN = 0) or CPU interrupt enabled (AIEN = 1)
is the input voltage signal from one of the 24 ADC channels to the ADC module.
ADC status and control register (ADSCR)
ADC data register (ADRH and ADRL)
ADC clock register (ADCLK)
and V
REFL
Address:
For maximum noise immunity, route V
to V
Routing V
noise rejection.
The write function of the COCO bit is reserved. When writing to the ADSCR
register, always have a 0 in the COCO bit position.
Reset:
Read:
Write:
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
are bonded internally.
SS
, place bypass capacitors as close as possible to the package.
$003C
COCO
Figure 3-4. ADC Status and Control Register (ADSCR)
Bit 7
REFH
R
R
0
ADIN
close and parallel to V
= Reserved
REFL
AIEN
)
SS
6
0
. External filtering is often necessary to ensure a clean V
as its lower voltage reference pin. By default, connect the V
ADCO
5
0
REFL
NOTE
NOTE
ADCH4
4
1
REFL
)
REFL
may improve common mode
carefully and, if not connected
ADCH3
3
1
ADCH2
2
1
ADCH1
1
1
ADCH0
Bit 0
1
REFL
I/O Registers
REFL
for good
pin
65
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