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R5F21143DSP View Datasheet(PDF) - Renesas Electronics

Part NameR5F21143DSP Renesas
Renesas Electronics Renesas
DescriptionR8C/14 Group, R8C/15 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
R5F21143DSP Datasheet PDF : 277 Pages
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R8C/14 Group, R8C/15 Group
7. Processor Mode
Processor Mode Register 1(1)
b7 b6 b5 b4 b3 b2 b1 b0
After Reset
Bit Symbol
Bit Name
Nothing is assigned. When w rite, set to “0”.
(b0) When read, its content is indeterminate.
Reserved Bit
Set to “0”
WDT Interrupt/Reset Sw itch Bit
0 : Watchdog Timer Interrupt
1 : Watchdog Timer Reset(2)
Nothing is assigned. When w rite, set to “0”.
(b6-b3) When read, its content is “0”.
Reserved Bit
Set to “0”
1. Set the PRC1 bit in the PRCR register to “1” (w rite enable) before rew riting to this register.
2. The PM12 bit is set to “1” by a program (It remains unchanged even if it is set to “0”).
When the CSPRO bit in the CSPR register is set to “1” (selects count source protect mode), the PM12 bit is
automatically set to “1”.
Figure 7.2 PM1 Register
Rev.2.10 Jan 19, 2006 Page 36 of 253
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This MCU is built using the high-performance silicon gate CMOS process using a R8C/Tiny Series CPU core and is packaged in a 20-pin plastic molded LSSOP. This MCU operates using sophisticated instructions featuring a high level of instruction efficiency. With 1 Mbyte of address space, it is capable of executing instructions at high speed. Furthermore, the data flash ROM (1KB × 2blocks) is embedded in the R8C/15 group.
The difference between R8C/14 and R8C/15 groups is only the existence of the data flash ROM. Their peripheral functions are the same.

Electric household appliance, office equipment, housing equipment (sensor, security), general industrial equipment, audio, etc.

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