S912XEG128J2MAL Freescale Semiconductor, S912XEG128J2MAL Datasheet - Page 638
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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 16 Freescale’s Scalable Controller Area Network (S12MSCANV3)
16.3.3.3
This register keeps the data length field of the CAN frame.
16.3.3.4
This register defines the local priority of the associated message buffer. The local priority is used for the
internal prioritization process of the MSCAN and is defined to be highest for the smallest binary number.
The MSCAN implements the following internal prioritization mechanisms:
638
Module Base + 0x00XC
DLC[3:0]
Field
•
3-0
Reset:
All transmission buffers with a cleared TXEx flag participate in the prioritization immediately
before the SOF (start of frame) is sent.
W
R
Data Length Code Bits — The data length code contains the number of bytes (data byte count) of the respective
message. During the transmission of a remote frame, the data length code is transmitted as programmed while
the number of transmitted data bytes is always 0. The data byte count ranges from 0 to 8 for a data frame.
Table 16-35
Data Length Register (DLR)
Transmit Buffer Priority Register (TBPR)
Figure 16-35. Data Length Register (DLR) — Extended Identifier Mapping
7
x
DLC3
0
0
0
0
0
0
0
0
1
shows the effect of setting the DLC bits.
= Unused; always read “x”
6
x
Table 16-34. DLR Register Field Descriptions
MC9S12XE-Family Reference Manual Rev. 1.25
DLC2
0
0
0
0
1
1
1
1
0
Table 16-35. Data Length Codes
Data Length Code
5
x
DLC1
4
x
0
0
1
1
0
0
1
1
0
Description
DLC3
x
3
DLC0
0
1
0
1
0
1
0
1
0
DLC2
2
x
Data Byte
Count
Freescale Semiconductor
DLC1
0
1
2
3
4
5
6
7
8
x
1
DLC0
0
x
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