UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 311

• 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

FlashVerify:
ModeOffLoop:
CMPW
BNC
INCW
BR
MOVW
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
HALT
MOV
CMP
BNZ
MOV
MOV
MOV
MOV
MOV
MOV
BT
MOV
MOV
EI
BR
AX,#DataAdrBtm
$FlashVerify
DE
FlashWriteLoop
HL,#WriteAdr
FLCMD,#02H
A,H
FLAPH,A
A,L
FLAPL,A
A,D
FLAPHC,A
A,E
FLAPLC,A
WDTE,#0ACH
A,PFS
A,#00H
$StatusError
FLCMD,#00H
PFS,#00H
PFCMD,#0A5H
FLPMC,#00H
FLPMC,#0FFH
FLPMC,#00H
PFS.0,$ModeOffLoop ; Checks completion of write to specific registers
MK0,#INT_MK0
MK1,#INT_MK1
StatusNormal
; Performs internal verify processing
; if write of all data is completed
; Address at which data is to be written + 1
; Sets verify address
; Sets flash control command (internal verify 2)
; Sets verify start address
; Sets verify start address
; Sets verify end address
; Sets verify end address
; Clears & restarts WDT
; Self programming is started
; Checks internal verify error
; Performs abnormal termination processing when an error
; occurs.
; Clears FLCMD register
; Clears flash status register
; PFCMD register control
; FLPMC register control (sets value)
; FLPMC register control (inverts set value)
; Sets normal mode via FLPMC register control (sets value)
CHAPTER 18 FLASH MEMORY
; Repeats the same processing when an error occurs
; Restore the CPU clock to its setting before the self
; programming, after normal completion of the specific
; sequence
; Restores interrupt mask flag
User’s Manual U16898EJ5V0UD
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