MC68HC908MR8CFA Freescale Semiconductor, MC68HC908MR8CFA Datasheet - Page 325

• Manufacturer Part Number: MC68HC908MR8CFA
• Description: IC MCU 8K FLASH 8MHZ PWM 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 16
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
ADICLK — ADC Input Clock Select Bit
MODE1:MODE0 — Modes of Result Justification Bits
ADICLK selects either bus clock or CGMXCLK as the input clock
source to generate the internal ADC clock. Reset selects CGMXCLK
as the ADC clock source.
If the external clock (CGMXCLK) is equal or greater than 1 MHz,
CGMXCLK can be used as the clock source for the ADC. If
CGMXCLK is less than 1 MHz, use the PLL-generated bus clock as
the clock source. As long as the internal ADC clock is at f
operation can be guaranteed.
MODE1:MODE0 selects among four modes of operation. The
manner in which the ADC conversion results will be placed in the ADC
data registers is controlled by these modes of operation. Reset
returns right-justified mode.
1 = Internal bus clock
0 = External clock, CGMXCLK
00 = 8-bit truncation mode
01 = Right justified mode
10 = Left justified mode
11 = Left justified sign data mode
Analog-to-Digital Converter (ADC)
ADIV2
X = don’t care
0
0
0
0
1
Table 18-2. ADC Clock Divide Ratio
f
ADIC
ADIV1
=
X
0
0
1
1
CGMXCLK or bus frequency
ADIV0
X
0
1
0
1
ADIV[2:0]
ADC input clock /1
ADC input clock /2
ADC input clock /4
ADC input clock /8
ADC input clock /16
ADC Clock Rate
Analog-to-Digital Converter (ADC)
ADIC
Technical Data
I/O Registers
, correct
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