M30620FCPFP#U3C Renesas Electronics America, M30620FCPFP#U3C Datasheet - Page 122
![IC M16C MCU FLASH 100QFP](/photos/12/42/124208/m30620fcpfp_u3c_sml.jpg)
M30620FCPFP#U3C
Manufacturer Part Number
M30620FCPFP#U3C
Description
IC M16C MCU FLASH 100QFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/60r
Datasheets
1.QSK-62P_PLUS.pdf
(103 pages)
2.M30622SAFPU5.pdf
(308 pages)
3.M30620SPGPU3C.pdf
(423 pages)
Specifications of M30620FCPFP#U3C
Core Processor
M16C/60
Core Size
16-Bit
Speed
24MHz
Connectivity
I²C, IEBus, UART/USART
Peripherals
DMA, WDT
Number Of I /o
85
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
10K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 26x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-QFP
For Use With
867-1000 - KIT QUICK START RENESAS 62PR0K33062PS001BE - R0K33062P STARTER KITR0K33062PS000BE - KIT EVAL STARTER FOR M16C/62PM3062PT3-CPE-3 - EMULATOR COMPACT M16C/62P/30P
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M30620FCPFP#U3CM30620FCPFP#D3C
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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M16C/62P Group (M16C/62P, M16C/62PT)
Rev.2.41
REJ09B0185-0241
11. Protection
In the event that a program runs out of control, this function protects the important registers so that they will not be
rewritten easily. Figure 11.1 shows the PRCR Register. The following lists the registers protected by the PRCR
register.
Set the PRC2 bit to “1” (write enabled) and then write to any address, and the PRC2 bit will be cleared to “0” (write
protected). The registers protected by the PRC2 bit should be changed in the next instruction after setting the PRC2 bit
to “1”. Make sure no interrupts or DMA transfers will occur between the instruction in which the PRC2 bit is set to
“1” and the next instruction. The PRC0, PRC1 and PRC3 bits are not automatically cleared to “0” by writing to any
address. They can only be cleared in a program.
Figure 11.1
Protect Register
• The PRC0 bit protects the CM0, CM1, CM2, PLC0 and PCLKR registers;
• The PRC1 bit protects the PM0, PM1, PM2, TB2SC, INVC0 and INVC1 registers;
• The PRC2 bit protects the PD9, S3C and S4C registers;
• The PRC3 bit protects the VCR2 and D4INT registers.
b7 b6 b5 b4 b3 b2 b1 b0
NOTES :
1.
Note
The M16C/62PT do not use the PRC3 bit in the PRCR register.
0 0
The PRC2 bit is set to “0” by w riting to any address after setting it to “1”. Other bits are not set to “0” by w riting to
any address, and must therefore be set in a program.
Jan 10, 2006
PRCR Register
Bit Symbol
(b5-b4)
(b7-b6)
Symbol
PRCR
PRC0
PRC1
PRC2
PRC3
—
—
Page 105 of 390
Protect Bit 0
Protect Bit 1
Protect Bit 2
Protect Bit 3
Reserved Bit
Nothing is assigned. When w rite, set to “0”.
When read, their contents are indeterminate.
Address
Bit Name
000Ah
Enable w rite to CM0, CM1, CM2, PLC0 and PCLKR
registers
0 : Write protected
1 : Write enabled
Enable w rite to PM0, PM1, PM2, TB2SC, INVC0 and
INVC1 registers
0 : Write protected
1 : Write enabled
Enable w rite to PD9, S3C and S4C registers
0 : Write protected
1 : Write enabled
Enable w rite to VCR2 and D4INT registers
0 : Write protected
1 : Write enabled
Set to “0”
(1)
After Reset
XX000000b
Function
11. Protection
RW
RW
RW
RW
RW
RW
—
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