MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 309

• Manufacturer Part Number: MC912DG128ACPV
• Description: IC MCU 128K FLASH 8MHZ 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC912DG128ACPV

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: CAN, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x8/10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IBFD — IIC Bus Frequency Divider Register
IBAD — IIC Bus Address Register
17.6 IIC Register Descriptions
MC68HC912DT128A — Rev 4.0
MOTOROLA
RESET:
RESET:
ADR7
Bit 7
Bit 7
NOTE:
0
0
0
ADR6
6
0
0
6
0
.
Read and write anytime
This register contains the address the IIC will respond to when
addressed as a slave; note that it is not the address sent on the bus
during the address transfer
ADR7–ADR1 — Slave Address
Read and write anytime
IBC5–IBC0 — IIC Bus Clock Rate 5–0
At 8 MHz system bus frequency, the IIC bus frequency will slow down by
as much as 5%. However, the communications rate of the IIC system will
be automatically adjusted to a slower rate.
Bit 1 to bit 7 contain the specific slave address to be used by the IIC
module.
The default mode of IIC is slave mode for an address match on the
bus.
This field is used to prescale the clock for bit rate selection. The bit
clock generator is implemented as a prescaled shift register - IBC5-3
select the prescaler divider and IBC2-0 select the shift register tap
point. The IBC bits are decoded to give the Tap and Prescale values
as shown in
Freescale Semiconductor, Inc.
For More Information On This Product,
ADR5
IBC5
5
0
5
0
Go to: www.freescale.com
Table
ADR4
IBC4
4
0
4
0
Inter IC Bus
17-1.
ADR3
IBC3
3
0
3
0
ADR2
IBC2
2
0
2
0
ADR1
IBC1
1
0
1
0
IIC Register Descriptions
Bit 0
Bit 0
IBC0
0
0
0
Technical Data
Inter IC Bus
$00E0
$00E1
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