MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 399

• 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

MC68HC912DT128A — Rev 4.0
MOTOROLA
(TARGET MCU)
TRANSMIT 1
TRANSMIT 0
OF BIT TIME
PERCEIVED
BKGD PIN
BKGD PIN
DRIVE TO
SPEEDUP PULSE
(TARGET
BDMCLK
BDMCLK
TARGET MCU
HOST
HOST
START
MCU)
HOST
START OF BIT
PERCEIVED
SYNCHRONIZATION
UNCERTAINTY
TIME
Figure 20-2. BDM Target to Host Serial Bit Timing (Logic 1)
Figure 20-1. BDM Host to Target Serial Bit Timing
HIGH-IMPEDANCE
BKGD pin during host-to-target transmissions to speed up rising edges.
Since the target does not drive the BKGD pin during this period, there is
no need to treat the line as an open-drain signal during host-to-target
transmissions.
Freescale Semiconductor, Inc.
For More Information On This Product,
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R-C RISE
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Go to: www.freescale.com
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Development Support
TARGET SENSES BIT
HIGH-IMPEDANCE
HOST SAMPLES
BKGD PIN
HIGH-IMPEDANCE
Background Debug Mode
HC12A4 BDM TARGET TO HOST TIM 1
Development Support
HC12A4 BDM HOST TO TARGET TIM
Technical Data
EARLIEST
START OF
EARLIEST
START OF
NEXT BIT
NEXT BIT
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