R32C/151 Group
1. Overview
1.1.2
Performance Overview
Table 1.1 and Table 1.2 show the performance overview of the R32C/151 Group.
Table 1.1
Unit
R32C/151 Group Performance (1/2)
Function
Performance
CPU
Central processing R32C/100 Series CPU Core
unit
• Basic instructions: 108
• Minimum instruction execution time: 15.625 ns (f(CPU) = 64 MHz)
• Multiplier: 32-bit × 32-bit ꢀ 64-bit
• Multiply-accumulate unit: 32-bit × 32-bit + 64-bit ꢀ 64-bit
• IEEE-754 floating point standard: Single precision
• 32-bit barrel shifter
• Operating mode: Single-chip mode
Memory
Flash memory: 768 Kbytes, 1 Mbyte
RAM: 48 Kbytes
Data flash: 4 Kbytes × 2 blocks
2
(1)
E dataFlash: none /8 Kbytes
Refer to Table 1.3 for details
(2)
Voltage
Detector
Low voltage
detector
Optional
Low voltage detection interrupt
Clock
Clock generator
• 4 circuits (main clock, sub clock, PLL, on-chip oscillator)
• Oscillation stop detector: Main clock oscillator stop/re-oscillation
detection
• Frequency divide circuit: Divide-by-2 to divide-by-24 selectable
• Low power modes: Wait mode, stop mode
Interrupts
Interrupt vectors: 261
External interrupt inputs: NMI, INT × 9, key input × 4
Interrupt priority levels: 7 levels
Watchdog Timer
15 bits × 1 (selectable input frequency from prescaler output)
Automatic timer start function is available
DMA
DMAC
4 channels
• Cycle-steal transfer mode
• Request sources: 52
• 2 transfer modes: Single transfer, repeat transfer
DMAC II
• Can be activated by any peripheral interrupt source
• 3 transfer functions: Immediate data transfer, calculation transfer,
chained transfer
I/O Ports
Timer
Programmable I/O • 2 input-only ports
ports
• 120 CMOS inputs/outputs
• A pull-up resistor is selectable for every 4 input ports
Timer A
16-bit timer × 5
Timer mode, event counter mode, one-shot timer mode, pulse-width
modulation (PWM) mode
Two-phase pulse signal processing in event counter mode (two-
phase encoder input) × 3
Timer B
16-bit timer × 6
Timer mode, event counter mode, pulse frequency measurement
mode, pulse-width measurement mode
Three-phase motor Three-phase motor control timer × 1 (timers A1, A2, A4, and B2 used)
control timer
8-bit programmable dead time timer
Notes:
2
1. Contact a Renesas Electronics sales office to use the non-E dataFlash version.
2. Contact a Renesas Electronics sales office to use the optional feature.
REJ03B0230-0110 Rev.1.10
Sep 06, 2010
Page 2 of 116
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