UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 309

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

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

(2) Write to internal verify
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> Specification of source data for write
<3> Execution of byte write → Error check (<1> to <10> in 18.8.8)
<4> <3> is repeated until all data are written.
<5> Execution of internal verify → Error check (<1> to <11> in 18.8.9)
<6> Mode is shifted from self programming mode to normal mode (<1> to <6> in 18.8.5)
Figure 18-26. Example of Operation When Command Execution Time Should Be Minimized
<1> to <6> in Figure 18-26 correspond to <1> to <6> in 18.8.10 (2) above.
Figure 18-18
Figure 18-19
Figure 18- 22
Figure 18- 23
<1> to <10>
<1> to <11>
<1> to <6>
<1> to <7>
<5> Execute internal verify command
<3> Execute byte write command
<1> Shift to self programming
<2> Set source data for write
<6> Shift to normal mode
(VCERR and WEPRERR flags)
(VCERR and WEPRERR flags)
Write to internal verify
CHAPTER 18 FLASH MEMORY
<3> Check execution result
<5> Check execution result
<4> All data written?
(from Write to Internal Verify)
Normal termination
User’s Manual U16898EJ5V0UD
mode
No
Normal
Normal
Abnormal
Abnormal
Yes
Abnormal termination
Note
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