S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 1173

• Manufacturer Part Number: S912XET256J2VAGR
• Description: 16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI
• Manufacturer: Freescale Semiconductor

Specifications of S912XET256J2VAGR

• Core: HCS12X
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: LQFP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 24
• Interface Type: CAN, SCI, SPI
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 119
• Number Of Timers: 25
• Program Memory Type: Flash
• Supply Voltage - Max: 1.98 V, 2.9 V, 5.5 V
• Supply Voltage - Min: 1.72 V, 2.7 V, 3.13 V

Freescale Semiconductor
Clock Register
Written
Check
FCCOB
Availability Check
Access Error and
Protection Violation
Check
Bit Polling for
Command Completion
Check
Figure 29-26. Generic Flash Command Write Sequence Flowchart
Read: FCLKDIV register
Write: FSTAT register (to launch command)
Clear CCIF 0x80
Write to FCCOBIX register
to identify specific command
parameter to load.
Write to FCCOB register
to load required command parameter.
MC9S12XE-Family Reference Manual Rev. 1.25
yes
START
FDIVLD
Set?
Read: FSTAT register
Read: FSTAT register
yes
Parameters?
ACCERR/
no
no
CCIF Set?
yes
Write: FCLKDIV register
Set?
CCIF
FPVIOL
Set?
More
EXIT
no
yes
no
yes
no
Chapter 29 1024 KByte Flash Module (S12XFTM1024K5V2)
Results from previous Command
Clear ACCERR/FPVIOL 0x30
Write: FSTAT register
Note: FCLKDIV must be set after
each reset
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