UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 469
![8BIT MCU, 128K FLASH, 7K RAM, LQFP](/photos/19/1/190186/ge64lqfp05-40_sml.jpg)
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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Last out-message
pointer(LOPT)
Last out-message
pointer(LOPT)
LOPT is locked.
Transmit history list(THL)
Transmit history list(THL)
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Message buffer 5
Message buffer 4
Message buffer 8
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 6
Figure 16-32. Transmit History List
TOVF is set.
If transmission from
message buffers 3 and 4
is completed
CHAPTER 16 CAN CONTROLLER
When transmission from message
buffer 3 is completed.
Transmit history list
get pointer(TGPT)
Transmit history list
get pointer(TGPT)
User’s Manual U17554EJ4V0UD
When message buffer 6 is read
When TOVF = 1, message buffer
number is stored (overwritten) to
element indicated by LOPT-1.
Last out-message
pointer(LOPT)
Last
out-message
pointer(LOPT)
When THL is full
Transmit history list(THL)
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Transmit history list(THL)
Message buffer 4
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 3
Message buffer 8
Message buffer 4
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
Transmit history list
get pointer(TGPT)
Transmit
history
list get
pointer
(TGPT)
469
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