UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 97

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

Specifications of UPD70F3451GC-UBT-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CSI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 10x12b, 4x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(2) Command register (PRCMD)
The PRCMD register is an 8-bit register that protects the registers that may seriously affect the application
system from being written, so that the system does not inadvertently stop due to a program loop. The first
write access to a special register is valid after data has been written in advance to the PRCMD register. In this
way, the value of the special register can be rewritten only in a specific sequence, so as to protect the register
from an illegal write access.
An illegal write operation to a special register can be checked by using the SYS.PRERR bit.
The PRCMD register is write-only, in 8-bit units (undefined data is read when this register is read).
Reset makes this register undefined.
After reset: Undefined
PRCMD
REG7
7
REG6
6
W
CHAPTER 3 CPU FUNCTION
REG5
User’s Manual U18279EJ3V0UD
Address:
5
FFFFF1FCH
REG4
4
REG3
3
REG2
2
REG1
1
REG0
0
95