UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 301
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F9222MC(T)-5A4-A
Manufacturer:
NEC
Quantity:
1 000
Company:
Part Number:
UPD78F9222MC(T)-5A4-A
Manufacturer:
NEC/PBF
Quantity:
6 640
Part Number:
UPD78F9222MC(T)-5A4-A
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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An example of a program that performs a byte write in self programming mode is shown below.
;----------------------------
;START
;----------------------------
FlashWrite:
;----------------------------
;END
;----------------------------
MOV
MOV
MOV
MOV
MOV
MOV
HALT
MOV
MOV
FLCMD,#05H
FLAPH,#07H
FLAPL,#20H
FLW,#10H
PFS,#00H
WDTE,#0ACH
A,PFS
CmdStatus,A
; Sets flash control command (byte write)
; Sets address to which data is to be written, with
; FLAPH (block 7 is specified here)
; Sets address to which data is to be written, with
; FLAPL (address 20H is specified here)
; Sets data to be written (10H is specified here)
; Clears flash status register
; Clears & restarts WDT
; Self programming is started
; Execution result is stored in variable
; (CmdStatus = 0: normal termination, other than 0: abnormal
; termination)
CHAPTER 18 FLASH MEMORY
User’s Manual U16898EJ5V0UD
301
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