XC68HC12A0CPV8 Freescale Semiconductor, XC68HC12A0CPV8 Datasheet - Page 381

• Manufacturer Part Number: XC68HC12A0CPV8
• Description: IC, 16BIT MCU, 68HC12, 8MHZ, TQFP-112
• Manufacturer: Freescale Semiconductor

Specifications of XC68HC12A0CPV8

• Controller Family/series: 68HC12
• No. Of I/o's: 68
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Core Size: 16 Bit
• Program Memory Size: 60KB
• Peripherals: ADC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
(TARGET MCU)
TRANSMIT 1
TRANSMIT 0
OF BIT TIME
PERCEIVED
DRIVE TO
BKGD PIN
SPEEDUP PULSE
BKGD PIN
(TARGET
BDMCLK
TARGET MCU
BDMCLK
HOST
START
HOST
MCU)
HOST
START OF BIT
PERCEIVED
SYNCHRONIZATION
UNCERTAINTY
TIME
Figure 19-2. BDM Target to Host Serial Bit Timing (Logic 1)
Figure 19-1. 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.
10 CYCLES
R-C RISE
10 CYCLES
10 CYCLES
Development Support
TARGET SENSES BIT
HIGH-IMPEDANCE
HOST SAMPLES
BKGD PIN
HIGH-IMPEDANCE
Background Debug Mode
Development Support
Technical Data
EARLIEST
START OF
START OF
EARLIEST
NEXT BIT
NEXT BIT
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