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REJ05B1160-0101 Rev.1.01 February 2010 Page 2 of 43

M16C/62P Group, R32C/111 Group

Differences between M16C/62P and R32C/111 (100 pin ver.)

3. Overview of Comparison

3.1 Overview of Functions

Table 3.1 and Table 3.2 list the functions of each product.

Notes:

1. “Not applicable” and “not available” will hereinafter be referred to as “N/A” in tables.

2. Please contact a Renesas sales office to use the optional feature.

3. IEBus is a trademark of NEC Electronics Corporation.

Table 3.1 Comparison Chart: Overview of Functions (1/2)

Item M16C/62P R32C/111

Basic instructions 91 108 (including 14 deleted, 31 added, and 5

changed)

Minimum

instruction

execution time

41.7 ns

(f(BCLK) = 24 MHz / VCC1 = 3.0 to 5.5 V)

20 ns (f(CPU) = 50 MHz)

Multiplier

16-bit × 16-bit

32-bit 32-bit × 32-bit64-bit

Multiply-

accumulate unit

N/A

(1)

32-bit × 32-bit + 64-bit64-bit

FPU N/A Single precision

(compliant with IEEE-754)

Barrel shifter N/A 32 bits

Operating mode Single-chip mode, memory expansion

mode, microprocessor mode

Single-chip mode, memory expansion

mode, microprocessor mode (optional

(2)

)

Address space 1 Mbytes (expandable to 4 Mbytes by

memory space expansion function)

4 Gbytes (available up to 64 Mbytes)

Voltage detector

(optional

(2)

)

Reset level detector, low voltage detector,

coldstart/warmstart determination

Low voltage detector

Low voltage detection interrupt

Clocks • Main clock oscillation circuit: 0 to 16 MHz

• PLL synthesizer: 10 to 24 MHz

• On-chip oscillator: approx. 1 MHz

• Frequency divide circuit: divide-by-i

selectable (i = 1, 2, 4, 8, 10, and 16)

• Main clock oscillation circuit: 4 to 16 MHz

• PLL synthesizer: 96 to 128 MHz

• On-chip oscillator: approx. 125 kHz

• Frequency divide circuit: divide-by-2 to

divide-by-24 selectable

Interrupts Interrupt vectors: 70 Interrupt vectors: 261

DMAC • 2 channels

• Request sources: 24

• 4 channels

• Request sources: 51

DMAC II N/A Embedded

X/Y converter N/A Embedded

I/O ports 87 inputs/outputs, 1 input-only port 82 CMOS inputs/outputs, 2 input-only ports

Serial interface • 3 channels (UART0 to UART2)

-Synchronous serial interface

-Asynchronous serial interface

• 1 channel (UART2)

-I

C bus, IEBus

(3)

mode

• 2 channels (SI/O3, SI/O4)

-Synchronous serial interface

• 9 channels (UART0 to UART8)

-Synchronous serial interface

-Asynchronous serial interface

• 7 channels (UART0 to UART6)

-I

C bus, special mode 2, IEBus

(3)

mode

(optional

(2)

)

1 2 3 4 5 6 7 ... 42 43

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