MC9S12C128VFU Freescale Semiconductor, MC9S12C128VFU Datasheet - Page 337

MC9S12C128VFU

Manufacturer Part Number
MC9S12C128VFU
Description
Manufacturer
Freescale Semiconductor
Datasheet

Specifications of MC9S12C128VFU

Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
25MHz
Interface Type
CAN/SCI/SPI
Program Memory Type
Flash
Program Memory Size
128KB
Total Internal Ram Size
4KB
# I/os (max)
60
Number Of Timers - General Purpose
8
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/2.97V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 105C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant

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The MSCAN is able to leave sleep mode (wake up) only when:
After wake-up, the MSCAN waits for 11 consecutive recessive bits to synchronize to the CAN bus. As a
consequence, if the MSCAN is woken-up by a CAN frame, this frame is not received.
The receive message buffers (RxFG and RxBG) contain messages if they were received before sleep mode
was entered. All pending actions will be executed upon wake-up; copying of RxBG into RxFG, message
aborts and message transmissions. If the MSCAN remains in bus-off state after sleep mode was exited, it
continues counting the 128 occurrences of 11 consecutive recessive bits.
Freescale Semiconductor
CAN bus activity occurs and WUPE = 1
or
the CPU clears the SLPRQ bit
The CPU cannot clear the SLPRQ bit before sleep mode (SLPRQ = 1 and
SLPAK = 1) is active.
Figure 10-45. Simplified State Transitions for Entering/Leaving Sleep Mode
StartUp
CAN Activity &
SLPRQ
CAN Activity &
SLPRQ
CAN Activity
MC9S12C-Family / MC9S12GC-Family
CAN Activity
CAN Activity
Message
Active
for Idle
Tx/Rx
Wait
Idle
Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV2)
Rev 01.24
NOTE
SLPRQ
CAN Activity
(CAN Activity & WUPE) | SLPRQ
Sleep
(CAN Activity & WUPE) |
CAN Activity
337

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