UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 343
![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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Figure 14-24 shows an example of the continuous transmission processing flow.
Remark TXB6n:
ASIF6n:
TXBF6n: Bit 1 of ASIF6n (transmit buffer data flag)
TXSF6n: Bit 0 of ASIF6n (transmit shift register data flag)
n = 0, 1
Figure 14-24. Example of Continuous Transmission Processing Flow
CHAPTER 14 SERIAL INTERFACES UART60 AND UART61
Transmit buffer register 6n
Asynchronous serial interface transmission status register 6n
executed necessary
completion interrupt
executed necessary
number of times?
number of times?
Write TXB6n.
Transmission
Set registers.
Write TXB6n.
Read
TXBF6n = 0?
Transfer
Transfer
occurs?
ASIF6n
User’s Manual U17554EJ4V0UD
Yes
No
No
Yes
No
Yes
No
Yes
transmission processing
Completion of
Read
TXSF6n = 0?
ASIF6n
Yes
Yes
No
343
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