r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 70

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Table 5.2
Note:
5.3.3
Table 5.3
Note:
ALeRASE
Other than ALeRASE
on-chip debugging emulator
0FFDFh
0FFEBh
0FFE3h
0FFEFh
0FFFBh
0FFF3h
0FFF7h
1. When the combination of ID codes and addresses match those listed in Table 5.2 respectively, the ID codes
1. Refer to 5.3.4 Standard Serial I/O Mode Disabled Function for the case where the ID code is Protect.
ID Code Storage
The forced erase function is used in standard serial I/O mode. When the ID code sent from the serial
programmer or the on-chip debugging emulator is the ASCII code ALeRASE, the entire data in the user ROM
area will be erased. However, if the stored ID codes are any value other than ALeRASE (refer to Table 5.2 ID
Code Reserved Word) and when the ROMCR bit is 1 and the ROMCP1 bit is 0 (ROM code protection
enabled) in the OFS register, a forced erase is not performed and the ID codes are examined with the ID code
check function. Table 5.3 lists the Conditions and Operations of Forced Erase Function.
Also, when the stored ID codes are set to ALeRASE in ASCII, if the ID codes sent from the serial programmer
or the on-chip debugging emulator are ALeRASE, the data in the user ROM area will be erased. For ID codes
other than ALeRASE, the ID codes do not match and no command is accepted, and thus the user ROM area
remains protected.
ID code from serial
form the corresponding reserved word.
programmer or
Address
Forced Erase Function
Preliminary document
Specifications in this document are tentative and subject to change.
ID Code Reserved Word
Conditions and Operations of Forced Erase Function
ID1
ID2
ID3
ID4
ID5
ID6
ID7
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)
ID code in ID code
ALeRASE
Other than
ALeRASE
ALeRASE
Other than
ALeRASE
storage address
(Forced Erase Function)
Condition
ALeRASE
(1)
(1)
Other than 01b
(ROM code protect disabled)
01b
(ROM code protect enabled)
lD Code Reserved Word (ASCII)
Bits ROMCP1 and ROMCR
in OFS register
—
—
—
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)
(Standard Serial I/O Mode Disabled Function)
Erasure of whole user ROM
area (forced erase
function)
ID code check
(ID code check function)
ID code check
(ID code check function.
No ID code match.)
ID code check
(ID code check function)
(1)
Protect
Operation
5. System Control
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