MC68HC908SR12CFA Freescale Semiconductor, MC68HC908SR12CFA Datasheet - Page 227
MC68HC908SR12CFA
Manufacturer Part Number
MC68HC908SR12CFA
Description
MICROCONTROLLER 48 PIN
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908SR12MFAE.pdf
(404 pages)
Specifications of MC68HC908SR12CFA
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, Temp Sensor
Number Of I /o
31
Program Memory Size
12KB (12K 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 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
Q1145673
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HC908SR12CFA
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
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14.7.2 Analog Module Gain Control Register (AMGCR)
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
Address:
OPCH1–OPCH0 — Amplifier Channel Select Control Bits
AMIEN — Analog Module Interrupt Enable
DO[2:0] — DC Offset Control Bits
The analog module gain control register (AMGCR) selects the two gains
for the two-stage amplifier.
Reset:
Read:
Write:
Figure 14-4. Analog Module Gain Control Register (AMGCR)
These read/write bits select the input source to be amplified by the
two-stage amplifier. Reset clears the OPCH1 and OPCH0 bits.
Setting this bit will enable the CDIF and OPIF flags to generate an
CPU interrupt requests. Reset clears the AMIEN bit.
Set these bits to zero for optimum analog module performance.
OPCH1
1 = Analog module CPU interrupt requests enabled
0 = Analog module CPU interrupt requests disabled
0
0
1
1
GAINB3
$000F
Bit 7
Table 14-2. Amplifier Channel Select Control bits
0
OPCH0
GAINB2
0
1
0
1
Analog Module
6
0
GAINB1
TSOUT (internal)
5
0
Input Source
OPIN1/ATD0
OPIN2/ATD1
V
SSAM
GAINB0
4
0
GAINA3
3
0
Internal temperature sensor
External negative reference
Analog Module I/O Registers
GAINA2
2
0
External pin
External pin
Comments
GAINA1
1
0
Analog Module
Data Sheet
GAINA0
Bit 0
0
227
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