r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 66

• 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
5.2.3
Notes:
PRC0 Bit (Protect bit 0)
PRC1 Bit (Protect bit 1)
PRC2 Bit (Protect bit 2)
PRC3 Bit (Protect bit 3)
After Reset
1. Once this bit is set to 1, writing remains enabled until it is set to 0 by a program.
2. The PRC2 bit is set to 0 after setting it to 1 (write enabled) and writing to the SFR area. The registers protected
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 00007h
by the PRC2 bit must be changed by the instruction after that used to set the PRC2 bit to 1. Interrupts and DTC
activation must be disabled between the instruction to set to the PRC2 bit to 1 and the next instruction.
This bit enables/disables writing to registers CM0, CM1, CM3, CM4, OCD, FRA0, FRA2, and CPSRF.
This bit enables/disables writing to registers PM0 and PM1.
This bit enables/disables writing to the PD0 register.
This bit enables/disables writing to registers OCVREFCR, VCA2, VD1LS, VW0C, VW1C, VW2C, and
SVDC.
Symbol
Symbol
Bit
PRC0
PRC1
PRC2
PRC3
Protect Register (PRCR)
—
—
—
—
Preliminary document
Specifications in this document are tentative and subject to change.
b7
—
0
Protect bit 0
Protect bit 1
Protect bit 2
Protect bit 3
Reserved
Nothing is assigned. The write value must be 0. The read value is 0.
b6
—
0
Bit Name
b5
—
0
b4
—
0
0: Disabled
1: Enabled
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Set to 0.
PRC3
b3
0
PRC2
(1)
(2)
(1)
b2
0
Function
PRC1
b1
0
PRC0
b0
0
5. System Control
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R/W
R/W
R/W
R/W
R/W
R/W
—