MC912D60ACPV8 Freescale Semiconductor, MC912D60ACPV8 Datasheet - Page 390
MC912D60ACPV8
Manufacturer Part Number
MC912D60ACPV8
Description
IC MCU 6K FLASH 8MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet
1.MC912D60ACFUE8.pdf
(460 pages)
Specifications of MC912D60ACPV8
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
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Development Support
19.4.5.2 INSTRUCTION - Hardware Instruction Decode
INSTRUCTION — BDM Instruction Register (hardware command explanation)
Technical Data
390
RESET:
BIT 7
H/F
0
DATA
6
0
CLKSW — BDMCLK Clock Switch
The WRITE_BD_BYTE@FF01 command that changes CLKSW
including 150 cycles after the data portion of the command should be
timed at the old speed. Beginning with the start of the next BDM
command, the new clock can be used for timing BDM communications.
If ECLK rate is slower than BDMCLK rate, CLKSW is ignored and BDM
system is forced to operate with ECLK.
The INSTRUCTION register is written by the BDM hardware as a result
of serial data shifted in on the BKGD pin. It is readable and writable in
Special Peripheral mode on the parallel bus. It is discussed here for two
conditions: when a hardware command is executed and when a
firmware command is executed.
Read and write: all modes
The hardware clears the INSTRUCTION register if 512 BDMCLK cycles
occur between falling edges from the host.
The bits in the BDM instruction register have the following meanings
when a hardware command is executed.
H/F — Hardware/Firmware Flag
0 = BDM system operates with BCLK.
1 = BDM system operates with ECLK.
0 = Firmware command
1 = Hardware command
R/W
5
0
Development Support
BKGND
4
0
W/B
3
0
BD/U
2
0
MC68HC912D60A — Rev. 3.1
1
0
0
Freescale Semiconductor
BIT 0
0
0
$FF00
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