UPD78F9234MC-5A4-A Renesas Electronics America, UPD78F9234MC-5A4-A Datasheet - Page 318

• Manufacturer Part Number: UPD78F9234MC-5A4-A
• Description: MCU 8BIT 8KB FLASH 30PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9234MC-5A4-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 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: -

316
An example of a program when the command execution time (from write to internal verify) should be minimized in
self programming mode is shown below.
;---------------------------------------------------------------------
;START
;---------------------------------------------------------------------
ModeOnLoop:
FlashWrite:
FlashWriteLoop:
MOV
MOV
MOV
DI
MOV
MOV
MOV
MOV
MOV
NOP
HALT
BT
MOVW
MOVW
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
HALT
MOV
CMP
BNZ
INCW
MOVW
CMPW
BNC
MK0,#11111111B
MK1,#11111111B
FLCMD,#00H
PFS,#00H
PFCMD,#0A5H
FLPMC,#01H
FLPMC,#0FEH
FLPMC,#01H
PFS.0,$ModeOnLoop ; Checks completion of write to specific registers
HL,#DataAdrTop
DE,#WriteAdr
FLCMD,#05H
A,D
FLAPH,A
A,E
FLAPL,A
A,[HL]
FLW,A
WDTE,#0ACH
A,PFS
A,#00H
$StatusError
HL
AX,HL
AX,#DataAdrBtm
$FlashVerify
; Masks all interrupts
; Clears FLCMD register
; Configure settings so that the CPU clock
; Clears flash status register
; PFCMD register control
; FLPMC register control (sets value)
; FLPMC register control (inverts set value)
; Sets self programming mode with FLPMC register control
; (sets value)
; Sets address at which data to be written is located
; 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
; Clears & restarts WDT
; Self programming is started
; Checks write error
; Performs abnormal termination processing when an error
; occurs
; Address at which data to be written is located + 1
; Performs internal verify processing
; if write of all data is completed
CHAPTER 19 FLASH MEMORY
; Repeats the same processing when an error occurs
User’s Manual U17446EJ5V0UD
1 MHz