UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 450
UPD78F0890GK(A)-GAJ-AX
Manufacturer Part Number
UPD78F0890GK(A)-GAJ-AX
Description
8BIT MCU, 128K FLASH, 7K RAM, LQFP
Manufacturer
NEC
Datasheet
1.UPD78F0890GKA-GAJ-AX.pdf
(732 pages)
Specifications of UPD78F0890GK(A)-GAJ-AX
Controller Family/series
UPD78F
No. Of I/o's
55
Ram Memory Size
7KB
Cpu Speed
20MHz
No. Of Timers
10
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
128KB
Oscillator Type
External, Internal
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(21) CAN message configuration register (C0MCONFm)
After reset: Undefined
C0MCONFm
The C0MCONFm register is used to specify the type of the message buffer and to set a mask.
Note The “message buffer that has already received a data frame” is a receive message buffer whose DN
Remark A remote frame is received and stored, regardless of the setting of OWS bit and DN
Note The RTR bit specifies the type of message frame that is transmitted from a message
OWS
RTR
MT2
0
1
0
1
0
0
0
0
1
1
Other than above
bit has been set to 1.
buffer defined as a transmit message buffer.Even if a valid remote frame has been
received, RTR of the transmit message buffer that has received the frame remains
cleared to 0.Even if a remote frame whose ID matches has been received from the CAN
bus with the RTR bit of the transmit message buffer set to 1 to transmit a remote frame,
that remote frame is not received or stored (interrupt generated, DN flag set, MDLC[3:0]
bits updated, and recorded to the receive history list).
The message buffer that has already received a data frame
received data frame. The newly received data frame is discarded.
The message buffer that has already received a data frame
data frame.
Transmit a data frame.
Transmit a remote frame.
bit. A remote frame that satisfies the other conditions (ID matches, RTR = 0, TRQ = 0)
is always received and stored in the corresponding message buffer (interrupt
generated, DN flag set, MDLC[3:0] bits updated, and recorded to the receive history
list).
MT1
0
0
1
1
0
0
OWS
7
MT0
0
1
0
1
0
1
R/W
RTR
Transmit message buffer
Receive message buffer (no mask setting)
Receive message buffer (mask 1 set)
Receive message buffer (mask 2 set)
Receive message buffer (mask 3 set)
Receive message buffer (mask 4 set)
Setting prohibited
6
CHAPTER 16 CAN CONTROLLER
Address: See Table 16-16
MT2
User’s Manual U17554EJ4V0UD
5
Remote Frame Request Bit
Overwrite Control Bit
MT1
4
Message Buffer Type Setting Bit
MT0
3
Note
Note
is not overwritten by a newly
is overwritten by a newly received
Note
2
0
1
0
MA0
0
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