MC9S12GC96MFAE Freescale Semiconductor, MC9S12GC96MFAE Datasheet - Page 174
![IC MCU 96K FLASH 25MHZ 48-LQFP](/photos/12/19/121954/mc9s12gc96mfae_sml.jpg)
MC9S12GC96MFAE
Manufacturer Part Number
MC9S12GC96MFAE
Description
IC MCU 96K FLASH 25MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12GC16MFUE.pdf
(690 pages)
Specifications of MC9S12GC96MFAE
Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
EBI/EMI, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
31
Program Memory Size
96KB (96K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
S12GC
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
4 KB
Interface Type
CAN/SCI/SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
31
Number Of Timers
8
Operating Supply Voltage
3.3 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
M68EVB912C32EE, M68DKIT912C32SLK
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Package
48LQFP
Family Name
HCS12
Maximum Speed
25 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12GC96MFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC9S12GC96MFAE
Manufacturer:
FRE/MOT
Quantity:
20 000
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Chapter 6 Background Debug Module (BDMV4) Block Description
6.4
The BDM receives and executes commands from a host via a single wire serial interface. There are two
types of BDM commands, namely, hardware commands and firmware commands.
Hardware commands are used to read and write target system memory locations and to enter active
background debug mode, see
includes all memory that is accessible by the CPU.
Firmware commands are used to read and write CPU resources and to exit from active background debug
mode, see
accumulator (D), X index register (X), Y index register (Y), stack pointer (SP), and program counter (PC).
Hardware commands can be executed at any time and in any mode excluding a few exceptions as
highlighted, see
when the system is in active background debug mode (BDM).
6.4.1
If the user resets into special single-chip mode with the system secured, a secured mode BDM firmware
lookup table is brought into the map overlapping a portion of the standard BDM firmware lookup table.
The secure BDM firmware verifies that the on-chip EEPROM and FLASH EEPROM are erased. This
being the case, the UNSEC bit will get set. The BDM program jumps to the start of the standard BDM
firmware and the secured mode BDM firmware is turned off and all BDM commands are allowed. If the
EEPROM or FLASH do not verify as erased, the BDM firmware sets the ENBDM bit, without asserting
UNSEC, and the firmware enters a loop. This causes the BDM hardware commands to become enabled,
but does not enable the firmware commands. This allows the BDM hardware to be used to erase the
EEPROM and FLASH. After execution of the secure firmware, regardless of the results of the erase tests,
the CPU registers, INITEE and PPAGE, will no longer be in their reset state.
6.4.2
The system must be in active BDM to execute standard BDM firmware commands. BDM can be activated
only after being enabled. BDM is enabled by setting the ENBDM bit in the BDM status (BDMSTS)
register. The ENBDM bit is set by writing to the BDM status (BDMSTS) register, via the single-wire
interface, using a hardware command such as WRITE_BD_BYTE.
After being enabled, BDM is activated by one of the following
When BDM is activated, the CPU finishes executing the current instruction and then begins executing the
firmware in the standard BDM firmware lookup table. When BDM is activated by the breakpoint sub-
1. BDM is enabled and active immediately out of special single-chip reset.
2. This method is only available on systems that have a a breakpoint or a debug sub-block.
174
•
•
•
•
Hardware BACKGROUND command
BDM external instruction tagging mechanism
CPU BGND instruction
Breakpoint sub-block’s force or tag mechanism
Functional Description
Section 6.4.4, “Standard BDM Firmware
Security
Enabling and Activating BDM
Section 6.4.3, “BDM Hardware
Section 6.4.3, “BDM Hardware
MC9S12C-Family / MC9S12GC-Family
Rev 01.24
Commands.” Firmware commands can only be executed
Commands.” The CPU resources referred to are the
2
Commands.” Target system memory
1
:
Freescale Semiconductor
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