UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 319

• 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

Note Perform processing to shift to normal mode in order to return to normal processing.
Remark
Figure 18-28. Example of Operation When Interrupt-Disabled Time Should Be Minimized
<1> to <10> in Figure 18-28 correspond to <1> to <10> in 18.8.11 (2) (previous page).
Figure 18-18
Figure 18-19
Figure 18-18
Figure 18-19
Figure 18-22
Figure 18-22
Figure 18-23
Figure 18-23
<1> to <7>
<1> to <6>
<1> to <7>
<1> to <6>
<1> to <4>
<5> to <10>
<1> to <5>
<6> to <11>
<9> Execute internal verify command
<7> Specify internal verify command
<4> Execute byte write command
<2> Specify byte write command
<3> Shift to self programming
<8> Shift to self programming
<1> Set source data for write
<10> Shift to normal mode
<5> Shift to normal mode
CHAPTER 18 FLASH MEMORY
(VCERR and WEPRERR flags)
(VCERR and WEPRERR flags)
(from Write to Internal Verify)
Write to internal verify
<4> Check execution result
<9> Check execution result
<6> All data written?
Normal termination
User’s Manual U16898EJ5V0UD
mode
mode
No
Normal
Normal
Abnormal
Abnormal
Yes
Abnormal termination
Note
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