UPD78F1142AGB-GAH-AX Renesas Electronics America, UPD78F1142AGB-GAH-AX Datasheet - Page 675
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UPD78F1142AGB-GAH-AX
Manufacturer Part Number
UPD78F1142AGB-GAH-AX
Description
MCU 16BIT 78K0R/KX3 64-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1142AGA-HAB-AX.pdf
(880 pages)
Specifications of UPD78F1142AGB-GAH-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Company:
Part Number:
UPD78F1142AGB-GAH-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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23.9 Flash Memory Programming by Self-Programming
program. Because this function allows a user application to rewrite the flash memory by using the 78K0R/KE3 self-
programming library, it can be used to upgrade the program in the field.
servicing can be executed. If an unmasked interrupt request is generated in the EI state, the request branches
directly from the self-programming library to the interrupt routine. After the self-programming mode is later restored,
self-programming can be resumed. However, the interrupt response time is different from that of the normal operation
mode.
The 78K0R/KE3 supports a self-programming function that can be used to rewrite the flash memory via a user
If an interrupt occurs during self-programming, self-programming can be temporarily stopped and interrupt
Remark For details of the self-programming function and the 78K0R/KE3 self-programming library, refer to
Cautions 1. The self-programming function cannot be used when the CPU operates with the subsystem
78K0R Microcontroller Self Programming Library Type01 User’s Manual (U18706E).
2. In the self-programming mode, call the self-programming start library (FlashStart).
3. To prohibit an interrupt during self-programming, in the same way as in the normal operation
4. The self-programming function is disabled in the low consumption current mode. For details
5. Disable DMA operation (DENn = 0) during the execution of self programming library
clock.
mode, execute the self-programming library in the state where the IE flag is cleared (0) by the
DI instruction. To enable an interrupt, clear (0) the interrupt mask flag to accept in the state
where the IE flag is set (1) by the EI instruction, and then execute the self-programming
library.
of the low consumption current mode, see CHAPTER 21 REGULATOR.
functions.
CHAPTER 23 FLASH MEMORY
User’s Manual U17854EJ9V0UD
673
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