MC9S12XDT256CAA Freescale Semiconductor, MC9S12XDT256CAA Datasheet - Page 184
MC9S12XDT256CAA
Manufacturer Part Number
MC9S12XDT256CAA
Description
IC MCU 256K FLASH 80-QFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12XD64CAA.pdf
(1348 pages)
Specifications of MC9S12XDT256CAA
Core Processor
HCS12X
Core Size
16-Bit
Speed
80MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
59
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Processor Series
S12XD
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
16 KB
Interface Type
CAN/I2C/SCI/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
59
Number Of Timers
12
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
EVB9S12XDP512E
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12XDT256CAA
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MC9S12XDT256CAAR
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 6 XGATE (S12XGATEV2)
XGATE Semaphore
XGATE Thread
XGATE Debug Mode
XGATE Software Error
Word
Byte
6.1.2
The XGATE module includes these features:
6.1.3
There are four run modes on S12X devices.
184
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Special XGATE channel that is not associated with any peripheral service request. A Software
Channel is triggered by its Software Trigger Bit which is implemented in the XGATE module.
A set of hardware flip-flops that can be exclusively set by either the S12X_CPU or the XGATE.
(see 6.4.4/6-204)
A code sequence which is executed by the XGATE’s RISC core after receiving an XGATE request.
A special mode in which the XGATE’s RISC core is halted for debug purposes. This mode enables
the XGATE’s debug features (see 6.6/6-206).
The XGATE is able to detect a number of error conditions caused by erratic software (see
6.4.5/6-205). These error conditions will cause the XGATE to seize program execution and flag an
Interrupt to the S12X_CPU.
A 16 bit entity.
An 8 bit entity.
Data movement between various targets (i.e Flash, RAM, and peripheral modules)
Data manipulation through built in RISC core
Provides up to 112 XGATE channels
— 104 hardware triggered channels
— 8 software triggered channels
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)
Features
Modes of Operation
MC9S12XDP512 Data Sheet, Rev. 2.21
Freescale Semiconductor
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