S912XEP768J5MAGR Freescale Semiconductor, S912XEP768J5MAGR Datasheet - Page 217
S912XEP768J5MAGR
Manufacturer Part Number
S912XEP768J5MAGR
Description
16-bit Microcontrollers - MCU 16-bit 768K Flash
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
Specifications of S912XEP768J5MAGR
Rohs
yes
Core
HCS12X
Processor Series
MC9S12
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
768 KB
Data Ram Size
48 KB
On-chip Adc
Yes
Operating Supply Voltage
3.3 V to 5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
LQFP-144
Mounting Style
SMD/SMT
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S912XEP768J5MAGR
Manufacturer:
Freescale Semiconductor
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10 000
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3.4.3
CPU and XGATE accesses are watched in the memory protection unit (See MPU Block Guide). In case of
access violation, the suspect master is acknowledged with an indication of an error; the victim target will
not be accessed.
Other violations MPU is not handling are listed below.
3.4.3.1
A possible access error is flagged by the MMC and signalled to XGATE under the following conditions:
For further details refer to the XGATE Block Guide.
3.4.4
The MMC controls the address buses and the data buses that interface the S12X masters (CPU, BDM and
XGATE) with the rest of the system (master buses). In addition the MMC handles all CPU read data bus
swapping operations. All internal and external resources are connected to specific target buses (see
Figure 3-23
1. Doted blocks and lines are optional. Please refer to the Device User Guide for their availlibilities.
Freescale Semiconductor
•
•
•
•
XGATE performs misaligned word (in case of load-store or opcode or vector fetch accesses).
XGATE accesses the register space (in case of opcode or vector fetch).
XGATE performs a write to Flash in any modes (in case of load-store access).
XGATE performs an access to a secured Flash in expanded modes (in case of load-store or opcode
or vector fetch accesses).
1
Chip Access Restrictions
Chip Bus Control
).
Illegal XGATE Accesses
MC9S12XE-Family Reference Manual Rev. 1.25
Chapter 3 Memory Mapping Control (S12XMMCV4)
217
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