UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 314

• 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

314
Note Perform processing to shift to normal mode in order to return to normal processing.
Remark
Figure 18-27. Example of Operation When Interrupt-Disabled Time Should Be Minimized
<1> to <8> in Figure 18-27 correspond to <1> to <8> in 18.8.11 (1) (previous page).
Figure 18-18
Figure 18-19
Figure 18-18
Figure 18-19
Figure 18-20
Figure 18-20
Figure 18-21
Figure 18-21
<1> to <7>
<1> to <6>
<1> to <7>
<1> to <6>
<1> to <5>
<6> to <11>
<1> to <5>
<6> to <11>
<3> Execute block erase command
<1> Specify block erase command
<2> Shift to self programming
<6> Shift to self programming
<4> Shift to normal mode
<7> Execute block blank
<8> Shift to normal mode
<5> Specify block blank
(VCERR and WEPRERR flags)
(VCERR and WEPRERR flags)
Erasure to blank check
<3> Check execution result
<7> Check execution result
Normal termination
check command
check command
(from Erasure to Blank Check)
CHAPTER 18 FLASH MEMORY
User’s Manual U16898EJ5V0UD
mode
mode
Normal
Normal
Abnormal
Abnormal
Abnormal termination
Note