R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 179

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

Specifications of R5F21324CNSP#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: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 150 of 573
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