UPD78F9212CS-CAB-A Renesas Electronics America, UPD78F9212CS-CAB-A Datasheet - Page 277

• Manufacturer Part Number: UPD78F9212CS-CAB-A
• Description: MCU 8BIT 4KB FLASH 16PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9212CS-CAB-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

An example of a program when the interrupt-disabled time (from write to internal verify) should be minimized in self
programming mode is shown below.
;---------------------------------------------------------------------
;START
;---------------------------------------------------------------------
FlashWrite:
FlashWriteLoop:
; Sets write command
MOVW
MOVW
MOV
MOV
MOV
MOV
MOV
MOV
MOV
CALL
; Execution of write command
MOV
MOV
HALT
MOV
CMP
BNZ
CALL
MOV
EI
; Judgment of writing all data
INCW
MOVW
CMPW
BNC
INCW
BR
; Setting internal verify command
HL,#DataAdrTop ; Sets address at which data to be written is located
DE,#WriteAdr
FLCMD,#05H
A,D
FLAPH,A
A,E
FLAPL,A
A,[HL]
FLW,A
!ModeOn
PFS,#00H
WDTE,#0ACH
A,PFS
A,#00H
$StatusError
!ModeOff
MK0,#INT_MK0
HL
AX,HL
AX,#DataAdrBtm ; Performs internal verify processing
$FlashVerify
DE
FlashWriteLoop
; Sets address at which data is to be written
; Sets flash control command (byte write)
; Sets address at which data is to be written
; Sets address at which data is to be written
; Sets data to be written
; Shift to self programming mode
; Clears flash status register
; Clears & restarts WDT
; Self programming is started
; Checks write error
; Performs abnormal termination processing when an error
; occurs.
; Shift to normal mode
; Restores interrupt mask flag
; Address at which data to be written is located + 1
; if write of all data is completed
; Address at which data is to be written + 1
CHAPTER 16 FLASH MEMORY
User’s Manual U16994EJ6V0UD
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