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Freescale Semiconductor Electronic Components Datasheet


(M9S12XD Series) 16-Bit Microprocessor

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M9S12XDP512VAG pdf
Freescale Semiconductor
Product Brief
Rev. 2.14, 7-Nov-2005
MC9S12XD Family
16-bit Microprocessor Family (covers MC9S12XD64 through
MC9S12XDP512 and MC3S12XDT256/MC3S12XDG128)
Targeted at automotive multiplexing applications, the MC9S12XD Family will deliver 32-bit performance
with all the advantages and efficiencies of a 16-bit MCU. The S12X is designed to retain the low cost, low
power consumption, excellent EMC performance and code-size efficiency advantages enjoyed by users
of Freescale's previous 16-bit MC9S12 MCU family.
Based around an enhanced S12 core, the MC9S12XD Family will deliver two to five times the
performance of a 25 MHz S12 whilst retaining a high degree of pin and code compatibility with the original
S12D - family.
The MC9S12XD Family features the performance boosting XGATE co-processor. The XGATE, which is
programmable in "C" language, has an instruction set which is optimized for data movement, logic and
bit manipulation instructions. It runs at twice the bus frequency of the S12X and off-loads the CPU by
providing high speed data transfer (and data processing) between any peripheral module, RAM and I/O
ports. This is particularly useful in applications such as automotive gateways where there are multiple
busses carrying heavy data traffic which would otherwise exert a heavy interrupt/processing load on the
© Freescale Semiconductor, Inc., 2005. All rights reserved.
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M9S12XDP512VAG pdf
The MC9S12XD Family will feature an enhanced MSCAN module which, when used in conjunction with
XGATE, delivers FullCAN performance with virtually unlimited number of mailboxes and retains
backwards compatibility with the MSCAN module featured on previous S12 products.
Memory options will range from 64 Kbytes to 512 Kbytes of Freescale's industry-leading, full automotive
spec SG-Flash with additional integrated EEPROM.
In addition to the rich S12 peripheral set, the MC9S12XD Family will feature more RAM, extra A/D
channels, new timer features and additional LIN-compatible SCI ports compared with the original S12 D-
Family. The MC9S12XD Family also features a new flexible interrupt handler which allows multilevel
nested interrupts.
The MC9S12XD Family has full 16-bit data paths throughout. The non-multiplexed expanded bus
interface available on the 144-pin versions allows an easy interface to external memories. The inclusion
of a PLL circuit allows power consumption and performance to be adjusted to suit operational
requirements. System power consumption is further improved with the new “fast exit from STOP mode”
feature and an ultra low power wakeup timer.
In addition to the I/O ports available in each module, up to 25 further I/O ports are available with interrupt
capability allowing wakeup from STOP or WAIT mode.
The MC9S12XD Family will be available in 144-pin LQFP (with optional external bus), 112-pin, and 80-pin
Features of the MC9S12XD Family are listed here. Please see Table 1 for memory options and Table 2
for the peripheral features that are available on the different family members.
16-bit CPU12X
Enhanced Interrupt
• Upward compatible with MC9S12 instruction set
• Enhanced indexed addressing
• Additional (superset) instructions to improve 32-bit calculations and
semaphore handling
• Access large data segments independent of PPAGE
• Eight levels of nested interrupt
• Flexible assignment of interrupt sources to each interrupt level.
• One non-maskable high priority interrupt (XIRQ)
• Wakeup interrupt inputs
– IRQ and non-maskable XIRQ
DataSheet4 U .com
MC9S12XD Family, Rev. 2.14
Freescale Semiconductor

Part Number M9S12XDP512VAG
Description (M9S12XD Series) 16-Bit Microprocessor
Maker Freescale Semiconductor - Freescale Semiconductor
Total Page 28 Pages
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