S912XEG128J2MAL Freescale Semiconductor, S912XEG128J2MAL Datasheet - Page 205
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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3.4.2
3.4.2.1
The BDM firmware lookup tables and BDM register memory locations share addresses with other
modules; however they are not visible in the memory map during user’s code execution. The BDM
memory resources are enabled only during the READ_BD and WRITE_BD access cycles to distinguish
between accesses to the BDM memory area and accesses to the other modules. (Refer to BDM Block
Guide for further details).
When the MCU enters active BDM mode, the BDM firmware lookup tables and the BDM registers
become visible in the local memory map in the range 0xFF00-0xFFFF (global address 0x7F_FF00 -
0x7F_FFFF) and the CPU begins execution of firmware commands or the BDM begins execution of
hardware commands. The resources which share memory space with the BDM module will not be visible
in the memory map during active BDM mode.
Please note that after the MCU enters active BDM mode the BDM firmware lookup tables and the BDM
registers will also be visible between addresses 0xBF00 and 0xBFFF if the PPAGE register contains value
of 0xFF.
Freescale Semiconductor
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Emulation single-chip mode
Tool vendors use this mode for emulation systems in which the user’s target application is normal
single-chip mode. Code is executed from external or internal memory depending on the set-up of
the EROMON bit (see
is active in both cases to allow observation of internal operations (internal visibility).
Normal expanded mode
The external bus interface is configured as an up to 23-bit address bus, 8 or 16-bit data bus with
dedicated bus control and status signals. This mode allows 8 or 16-bit external memory and
peripheral devices to be interfaced to the system. The fastest external bus rate is half of the internal
bus rate. An external signal can be used in this mode to cause the external bus to wait as desired by
the external logic.
Emulation expanded mode
Tool vendors use this mode for emulation systems in which the user’s target application is normal
expanded mode.
Special test mode
This mode is an expanded mode for factory test.
Memory Map Scheme
CPU and BDM Memory Map Scheme
Section 3.3.2.5, “MMC Control Register
MC9S12XE-Family Reference Manual Rev. 1.25
Chapter 3 Memory Mapping Control (S12XMMCV4)
(MMCCTL1)). The external bus
205
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