R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 211
R5F21346CNFP#U0
Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet
1.R5F21346CNFPU0.pdf
(759 pages)
Specifications of R5F21346CNFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
43
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 178 of 723
12.2
Table 12.1
Note:
0FFDFh
0FFE3h
0FFEBh
0FFEFh
0FFF3h
0FFF7h
0FFFBh
The ID code areas are used in standard serial I/O mode. Unless 3 bytes (addresses 0FFFCh to 0FFFEh) of the reset
vector are set to FFFFFFh, the ID codes stored in the ID code areas and the ID codes sent from the serial
programmer or the on-chip debugging emulator are checked to see if they match. If the ID codes match, the
commands sent from the serial programmer or the on-chip debugging emulator are acknowledged. If the ID codes
do not match, the commands are not acknowledged. To use the serial programmer or the on-chip debugging
emulator, first write predetermined ID codes to the ID code areas.
If 3 bytes (addresses 0FFFCh to 0FFFEh) of the reset vector are set to FFFFFFh, the ID codes are not checked and
all commands are accepted.
The ID code areas are allocated in the flash memory, not in the SFRs. Set appropriate values as ROM data by a
program.
The character sequence of the ASCII codes “ALeRASE” is the reserved word used for the forced erase function.
The character sequence of the ASCII codes “Protect” is the reserved word used for the standard serial I/O mode
disabled function. Table 12.1 shows the ID Code Reserved Word. The reserved word is a set of reserved characters
when all the addresses and data in the ID code storage addresses sequentially match Table 12.1. When the forced
erase function or standard serial I/O mode disabled function is not used, use another character sequence of the
ASCII codes.
ID Code Storage Address
1. Reserve word:A set of characters when all the addresses and data in the ID code storage addresses
Functions
ID Code Reserved Word
ID1
ID2
ID3
ID4
ID5
ID6
ID7
sequentially match Table 12.1.
41h (upper-case “A”)
4Ch (upper-case “L”)
65h (lower-case “e”)
52h (upper-case “R”)
41h (upper-case “A”)
53h (upper-case “S”)
45h (upper-case “E”)
ALeRASE
lD Code Reserved Word (ASCII)
50h (upper-case “P”)
72h (lower-case “r”)
6Fh (lower-case “o”)
74h (lower-case “t”)
65h (lower-case “e”)
63h (lower-case “c”)
74h (lower-case “t”)
Protect
(1)
12. ID Code Areas
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