S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 355

• 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

10.1.3
There are four run modes on S12XE devices.
10.1.4
Figure 10-1
Freescale Semiconductor
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Provides up to 108 XGATE channels, including 8 software triggered channels
Interruptible thread execution
Two register banks to support fast context switching between threads
Hardware semaphores which are shared between the S12X_CPU and the XGATE module
Able to trigger S12X_CPU interrupts upon completion of an XGATE transfer
Software error detection to catch erratic application code
Run mode, wait mode, stop mode
The XGATE is able to operate in all of these three system modes. Clock activity will be
automatically stopped when the XGATE module is idle.
Freeze mode (BDM active)
In freeze mode all clocks of the XGATE module may be stopped, depending on the module
configuration (see
Modes of Operation
Block Diagram
shows a block diagram of the XGATE.
Peripherals
Peripheral Interrupts
Software
Interrupt
Triggers
SWE
Section 10.3.1.1, “XGATE Control Register
XGATE
Software Error Logic
Interrupt Flags
Software Triggers
MC9S12XE-Family Reference Manual Rev. 1.25
Semaphores
Figure 10-1. XGATE Block Diagram
S12X_INT
S12X_MMC
RISC Core
(XGMCTL)”).
S12X_DBG
Chapter 10 XGATE (S12XGATEV3)
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