M30853FJGP#U3 Renesas Electronics America, M30853FJGP#U3 Datasheet - Page 354

• Manufacturer Part Number: M30853FJGP#U3
• Description: IC M32C MCU FLASH 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M30853FJGP#U3

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 85
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 26x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Q&A
Information in a Q&A form to be used to make the most of the M16C Family is given below.
Usually, one question and the answer to it are given on the same page; the upper section is for the
question, and the lower section is for the answer (if a pair of question and answer extends over two
or more page, a page number is given at the lower-right corner).
Functions closely connected with the contents of a page are shown at its upper-right corner.
Q
A
Q
A
How do I distinguish between the static base register (SB) and the frame base register (FB)?
Only positive displacement is allowed in SB Relative Addressing, while FB Relative Ad-
dressing can be with positive or negative displacement.
If you write a program in C, use FB as a stack frame base register.
You can use SB and FB as intended in programming in the assembly language.
What is the difference between the user stack pointer (USP) and the interrupt stack pointer
(ISP)? What are their roles?
You use USP when using the OS. When several tasks run, the OS secures stack areas to
save registers of individual tasks. Also, stack areas have to be secured, task by task, to be
used for handling interrupts that occur while tasks are being executed. If you use USP and
ISP in such an instance, the stack for interrupts can be shared by these tasks; this allows
you to efficiently use stack areas.
Q&A-1
CPU
CPU