S912XEG128J2MAL Freescale Semiconductor, S912XEG128J2MAL Datasheet - Page 220
S912XEG128J2MAL
Manufacturer Part Number
S912XEG128J2MAL
Description
16-bit Microcontrollers - MCU 16BIT 128K FLASH 16K RAM
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
Specifications of S912XEG128J2MAL
Rohs
yes
Core
RISC
Processor Series
HCS12X
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
128 KB
Data Ram Size
12 KB
On-chip Adc
Yes
Operating Supply Voltage
5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
LQFP-112
Mounting Style
SMD/SMT
A/d Bit Size
12 bit
A/d Channels Available
8
Data Rom Size
4 KB
Interface Type
CAN, I2C, SCI, SPI
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
On-chip Dac
Yes
Program Memory Type
Flash
Supply Voltage - Max
5.5 V
Supply Voltage - Min
3.13 V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
S912XEG128J2MAL
Manufacturer:
NXP/恩智浦
Quantity:
20 000
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Chapter 3 Memory Mapping Control (S12XMMCV4)
in the memory map. This is to make sure that the correct PPAGE value will be present on stack at the time
of the RTC instruction execution.
3.5.2
Registers used for emulation purposes must be rebuilt by the in-circuit emulator hardware to achieve full
emulation of single chip mode operation. These registers are called port replacement registers (PRRs) (see
Table
aligned, word-misaligned and byte).
Each access to PRRs will be extended to 2 bus cycles for write or read accesses independent of the
operating mode. In emulation modes all write operations result in simultaneous writing to the internal
registers (peripheral access) and to the emulated registers (external access) located in the PRU in the
emulator. All read operations are performed from external registers (external access) in emulation modes.
In all other modes the read operations are performed from the internal registers (peripheral access).
Due to internal visibility of CPU accesses the CPU will be halted during XGATE or BDM access to any
PRR. This rule applies also in normal modes to ensure that operation of the device is the same as in
emulation modes.
A summary of PRR accesses:
220
•
•
•
1-25). PRRs are accessible from CPU, BDM and XGATE using different access types (word
An aligned word access to a PRR will take 2 bus cycles.
A misaligned word access to a PRRs will take 4 cycles. If one of the two bytes accessed by the
misaligned word access is not a PRR, the access will take only 3 cycles.
A byte access to a PRR will take 2 cycles.
Port Replacement Registers (PRRs)
MC9S12XE-Family Reference Manual Rev. 1.25
Freescale Semiconductor
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