MC9S12XEP100MAL Freescale Semiconductor, MC9S12XEP100MAL Datasheet - Page 276
![IC MCU 16BIT 1M FLASH 112-LQFP](/photos/12/42/124253/mc9s12xep100mal_sml.jpg)
MC9S12XEP100MAL
Manufacturer Part Number
MC9S12XEP100MAL
Description
IC MCU 16BIT 1M FLASH 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12XEP768CAL.pdf
(1328 pages)
Specifications of MC9S12XEP100MAL
Core Processor
HCS12X
Core Size
16-Bit
Speed
50MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
91
Program Memory Size
1MB (1M x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
1.72 V ~ 5.5 V
Data Converters
A/D 16x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
112-LQFP
Processor Series
S12XE
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
64 KB
Interface Type
SPI, SSI
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
91
Number Of Timers
25
Operating Supply Voltage
- 0.3 V to + 6 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
For Use With
EVB9S12XEP100 - BOARD EVAL FOR MC9S12XEP100DEMO9S12XEP100 - BOARD DEMO FOR MC9S12XEP100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12XEP100MAL
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC9S12XEP100MAL
Manufacturer:
FREESCALE
Quantity:
20 000
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Chapter 6 Interrupt (S12XINTV2)
6.4.1
The CPU handles both reset requests and interrupt requests. The XINT module contains registers to
configure the priority level of each I bit maskable interrupt request which can be used to implement an
interrupt priority scheme. This also includes the possibility to nest interrupt requests. A priority decoder
is used to evaluate the priority of a pending interrupt request.
6.4.2
After system reset all interrupt requests with a vector address lower than or equal to (vector base + 0x00F2)
are enabled, are set up to be handled by the CPU and have a pre-configured priority level of 1. Exceptions
to this rule are the non-maskable interrupt requests and the spurious interrupt vector request at (vector base
+ 0x0010) which cannot be disabled, are always handled by the CPU and have a fixed priority levels. A
priority level of 0 effectively disables the associated I bit maskable interrupt request.
If more than one interrupt request is configured to the same interrupt priority level the interrupt request
with the higher vector address wins the prioritization.
The following conditions must be met for an I bit maskable interrupt request to be processed.
6.4.2.1
The current interrupt processing level (IPL) is stored in the condition code register (CCR) of the CPU. This
way the current IPL is automatically pushed to the stack by the standard interrupt stacking procedure. The
new IPL is copied to the CCR from the priority level of the highest priority active interrupt request channel
which is configured to be handled by the CPU. The copying takes place when the interrupt vector is
fetched. The previous IPL is automatically restored by executing the RTI instruction.
276
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indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
1. The local interrupt enabled bit in the peripheral module must be set.
2. The setup in the configuration register associated with the interrupt request channel must meet the
3. The I bit in the condition code register (CCR) of the CPU must be cleared.
4. There is no access violation interrupt request pending.
5. There is no SYS, SWI, BDM, TRAP, or XIRQ request pending.
following conditions:
a) The XGATE request enable bit must be 0 to have the CPU handle the interrupt request.
b) The priority level must be set to non zero.
c) The priority level must be greater than the current interrupt processing level in the condition
code register (CCR) of the CPU (PRIOLVL[2:0] > IPL[2:0]).
S12X Exception Requests
Interrupt Prioritization
Interrupt Priority Stack
All non I bit maskable interrupt requests always have higher priority than
I bit maskable interrupt requests. If an I bit maskable interrupt request is
interrupted by a non I bit maskable interrupt request, the currently active
interrupt processing level (IPL) remains unaffected. It is possible to nest
non I bit maskable interrupt requests, e.g., by nesting SWI or TRAP calls.
MC9S12XE-Family Reference Manual , Rev. 1.23
NOTE
Freescale Semiconductor
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