UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 306
UPD78F9222MC(T)-5A4-A
Manufacturer Part Number
UPD78F9222MC(T)-5A4-A
Description
8BIT MCU, 4K FLASH, 256B RAM, 78F9222
Manufacturer
NEC
Datasheet
1.UPD78F9222MCT-5A4-A.pdf
(414 pages)
Specifications of UPD78F9222MC(T)-5A4-A
Controller Family/series
UPD78
No. Of I/o's
17
Ram Memory Size
256Byte
Cpu Speed
10MHz
No. Of Timers
4
No. Of
RoHS Compliant
Core Size
8bit
Program Memory Size
4KB
Oscillator Type
External, Internal
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Part Number:
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18.8.10 Examples of operation when command execution time should be minimized in self programming
explained below.
306
Examples of operation when the command execution time should be minimized in self programming mode are
(1) Erasure to blank check
Note Perform processing to shift to normal mode in order to return to normal processing.
Remark
<1> Mode is shifted from normal mode to self programming mode (<1> to <7> in 18.8.4)
<2> Execution of block erase → Error check (<1> to <11> in 18.8.6)
<3> Execution of block blank check → Error check (<1> to <11> in 18.8.7)
<4> Mode is shifted from self programming mode to normal mode (<1> to <6> in 18.8.5)
mode
Figure 18-25. Example of Operation When Command Execution Time Should Be Minimized
<1> to <4> in Figure 18-25 correspond to <1> to <4> in 18.8.10 (1) above.
Figure 18-18
Figure 18-20
Figure 18-21
Figure 18-19
<1> to <11>
<1> to <11>
<1> to <7>
<1> to <6>
<1> Shift to self programming
<3> Execute block blank check
<4> Shift to normal mode
<2> Execute block erase
(VCERR and WEPRERR flags)
(VCERR and WEPRERR flags)
Erasure to blank check
<2> Check execution result
<3> Check execution result
Normal termination
(from Erasure to Blank Check)
CHAPTER 18 FLASH MEMORY
User’s Manual U16898EJ5V0UD
mode
Normal
Normal
Abnormal
Abnormal
Abnormal termination
Note
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