UPD78F9222CS-CAC-A Renesas Electronics America, UPD78F9222CS-CAC-A Datasheet - Page 302
UPD78F9222CS-CAC-A
Manufacturer Part Number
UPD78F9222CS-CAC-A
Description
MCU 8BIT 4KB FLASH 20PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9221MC-5A4-A.pdf
(418 pages)
Specifications of UPD78F9222CS-CAC-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
4KB (4K 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
-
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18.8.7 Example of block blank check operation in self programming mode
300
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 18 FLASH MEMORY
User’s Manual U16898EJ6V0UD
Note
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