CR16MCS9VJE8 National Semiconductor, CR16MCS9VJE8 Datasheet - Page 108
![16-Bit Microcontroller IC](/photos/19/4/190456/3833527_sml.gif)
CR16MCS9VJE8
Manufacturer Part Number
CR16MCS9VJE8
Description
16-Bit Microcontroller IC
Manufacturer
National Semiconductor
Datasheet
1.CR16MCS9VJE8.pdf
(156 pages)
Specifications of CR16MCS9VJE8
Controller Family/series
CR16X
Core Size
16 Bit
Program Memory Size
64K X 8 Flash
Digital Ic Case Style
PQFP
No. Of Pins
80
Mounting Type
Surface Mount
Clock Frequency
25MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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20.9.5
The data bytes that are not used for data transfer are “don’t
cares”. If the message is transmitted, the data within these
bytes will be ignored. If the message is received, the data
within these bytes will be overwritten with invalid data.
SRR
IDE
RTR
ID[28:0]
ADDR
xxxC
xxxA
xxxE
xxx8
xxx6
xxx4
xxx2
xxx0
16
16
16
16
16
16
1 6
1 6
Storage of Messages with Less Than 8 Data
Bytes
BUFFER
register
CNTSTAT
DATA0
DATA1
DATA2
DATA3
TSTP
Substitute Remote Request. SRR replaces the
RTR bit used in standard frames at this bit po-
sition. The SRR bit needs to be set to “1” by the
user if the buffer is configured to transmit a
message with an extended identifier. It will be
received as monitored on the CAN bus.
Identifier Extension. IDE is set to “0” to indicate
that the message is a standard frame using 11
identifier bits. If IDE is set to “1”, the message
stored in the buffer is handled as an extended
frame.
Remote Transmission Request. RTR is set to
“1” to indicate that the message is a remote
frame. For a data frame, the RTR bit is set to
“0”.
The ID bits 28 to 0 are used to build the 29-bit
identifier of an extended frame.
ID1
ID0
TSTP
DLC3
ID28
ID14
Data
Data
Data
Data
15
1.7
3.7
5.7
7.7
15
TSTP
DLC2
ID27
ID13
Data
Data
Data
Data
14
1.6
3.6
5.6
7.6
14
TSTP
DLC1
ID26
ID12
Data
Data
Data
Data
13
Table 29 Extended Messages with 8 Data Bytes
1.5
3.5
5.5
7.5
13
TSTP
DLC0
ID25
ID11
Data
Data
Data
Data
12
1.4
3.4
5.4
7.4
12
TSTP
ID24
ID10
Data
Data
Data
Data
11
1.3
3.3
5.3
7.3
11
TSTP
ID23
Data
Data
Data
Data
10
ID9
1.2
3.2
5.2
7.2
10
Reserved
108
TSTP
ID22
Data
Data
Data
Data
ID8
1.1
3.1
5.1
7.1
9
9
20.9.6
If the IDE bit is set to “1”, the buffer handles extended frames.
The storage of the extended ID follows the descriptions in
Table29. The SRR bit is at the bit position of the RTR bit for
standard frame and needs to be transmitted as “1”.
TSTP
ID21
Data
Data
Data
Data
ID7
1.0
3.0
5.0
7.0
8
8
TSTP
Storage of Extended Messages
ID20
Data
Data
Data
Data
PRI3
ID6
2.7
4.7
6.7
8.7
7
7
TSTP
ID19
Data
Data
Data
Data
PRI2
ID5
2.6
4.6
6.6
8.6
6
6
TSTP
ID18
Data
Data
Data
Data
PRI1
ID4
2.5
4.5
6.5
8.5
5
5
TSTP
SRR
Data
Data
Data
Data
PRI0
ID3
2.4
4.4
6.4
8.4
4
4
TSTP
Data
Data
Data
Data
ST3
IDE
ID2
2.3
4.3
6.3
8.3
3
3
TSTP
ID17
Data
Data
Data
Data
ST2
ID1
2.2
4.2
6.2
8.2
2
2
TSTP
ID16
Data
Data
Data
Data
ST1
ID0
2.1
4.1
6.1
8.1
1
1
TSTP
ID15
RTR
Data
Data
Data
Data
ST0
2.0
4.0
6.0
8.0
0
0