MC912D60CCPVE Freescale Semiconductor, MC912D60CCPVE Datasheet - Page 386

IC MCU 16BIT 112-LQFP

MC912D60CCPVE

Manufacturer Part Number
MC912D60CCPVE
Description
IC MCU 16BIT 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet

Specifications of MC912D60CCPVE

Core Processor
CPU12
Core Size
16-Bit
Speed
8MHz
Connectivity
CAN, MI Bus, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
68
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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
Processor Series
HC912D
Core
HC12
Data Bus Width
16 bit
Data Ram Size
2 KB
Interface Type
CAN, SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
86
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Part Number:
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Development Support
19.4.4 BDM Lockout
19.4.4.1 Enabling BDM lockout
Technical Data
386
The external host should delay about 32 target BDMCLK cycles after the
data portion of firmware write commands to allow BDM firmware to
complete the requested write operation before a new serial command
disturbs the BDM SHIFTER register.
The external host should delay about 64 target BDMCLK cycles after a
TRACE1 or GO command before starting any new serial command. This
delay is needed because the BDM SHIFTER register is used as a
temporary data holding register during the exit sequence to user code.
BDM logic retains control of the internal buses until a read or write is
completed. If an operation can be completed in a single cycle, it does not
intrude on normal CPU12 operation. However, if an operation requires
multiple cycles, CPU12 clocks are frozen until the operation is complete.
The access to the MCU resources by BDM may be prevented by
enabling the BDM lockout feature. When enabled, the BDM lockout
mechanism prevents the BDM from being active. In this case the BDM
ROM is disabled and does not appear in the MCU memory map.
BDM lockout is enabled by clearing NOBDML bit of EEMCR register.
The NOBDML bit is loaded at reset from the SHADOW byte of EEPROM
module. Modifying the state of the NOBDML and corresponding
EEPROM SHADOW bit is only possible in special modes.
Please refer to
Enabling the BDM lockout feature is only possible in special modes
(SMODN=0) and is accomplished by the following steps.
1. Remove the SHADOW byte protection by clearing SHPROT bit in
2. Clear NOSHB bit in EEMCR register to make the SHADOW byte
3. Program bit 7 of the SHADOW byte like a regular EEPROM
EEPROT register.
visible at $0FC0.
location at address $0FC0 (write $7F into address $0FC0). Do not
Development Support
EEPROM Memory
for NOBDML information.
MC68HC912D60A — Rev. 3.1
Freescale Semiconductor

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