UPD78F9234MC-5A4-A Renesas Electronics America, UPD78F9234MC-5A4-A Datasheet - Page 304

• 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: -

19.8.7 Example of block blank check operation in self programming mode
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An example of the block blank check operation in self programming mode is explained below.
<1> Set 04H (block blank check) to the flash program command register (FLCMD).
<2> Set the number of block for which a blank check is performed, to flash address pointer H (FLAPH).
<3> Set flash address pointer L (FLAPL) to 00H.
<4> Write the same value as FLAPH to the flash address pointer H compare register (FLAPHC).
<5> Set the flash address pointer L compare register (FLAPLC) to FFH.
<6> Clear the flash status register (PFS).
<7> Write ACH to the watchdog timer enable register (WDTE) (clear and restart the watchdog timer counter)
<8> Execute the HALT instruction then start self programming. (Execute an instruction immediately after the
<9> Check if a self programming error has occurred using bit 1 (VCERR) and bit 2 (WEPRERR) of PFS.
<10> Block blank check is abnormally terminated.
<11> Block blank check is normally terminated.
Note This setting is not required when the watchdog timer is not used.
HALT instruction if self programming has been executed.)
Abnormal
Normal
<10>
<11>
CHAPTER 19 FLASH MEMORY
User’s Manual U17446EJ5V0UD
Note
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