S7G2 datasheet(4/116 Pages) RENESAS

4 / 116 page

R01DS0262EU0100 Rev.1.00

Page 4 of 113

Feb 23, 2016

S7G2

1. Overview

Table 1.4

Interrupt control

Feature

Functional description

Interrupt Controller Unit (ICU)

The ICU controls which event signals are linked to the NVIC/DTC module and DMAC module.

The ICU also controls NMI interrupts. See section 14, Interrupt Controller Unit (ICU) in User's

Manual.

Table 1.5

Event link

Feature

Functional description

Event Link Controller (ELC)

The ELC uses the interrupt requests generated by various peripheral modules as event

signals to connect them to different modules, enabling direct interaction between the modules

without CPU intervention. See section 19, Event Link Controller (ELC) in User's Manual.

Table 1.6

Direct memory access

Feature

Functional description

Data Transfer Controller (DTC)

A DTC module is provided for transferring data when activated by an interrupt request. See

section 18, Data Transfer Controller (DTC) in User's Manual.

DMA Controller (DMAC)

An 8-channel DMAC module is provided for transferring data without the CPU. When a DMA

transfer request is generated, the DMAC transfers data stored at the transfer source address

to the transfer destination address. See section 17, DMA Controller (DMAC) in User's Manual.

Table 1.7

External bus interface

Feature

Functional description

External buses

 CS area (EXBIU): Connected to the external devices (external memory interface)

 SDRAM area (EXBIU): Connected to the SDRAM (external memory interface)

 QSPI area (EXBIUT2): Connected to the QSPI (external device interface).

Table 1.8

Timers

Feature

Functional description

General PWM Timer (GPT)

The GPT is a 32-bit timer with 14 channels. PWM waveforms can be generated by controlling

the up-counter, down-counter, or up- and down-counter. In addition, PWM waveforms can be

generated for controlling brushless DC motors. The GPT can also be used as a general-

purpose timer. See section 23, General PWM Timer (GPT) in User's Manual.

Port Output Enable for GPT (POEG)

Use the Port Output Enable (POEG) function to place the General PWM Timer (GPT) output

pins in the output disable state.

Asynchronous General-Purpose

Timer (AGT)

The AGT is a 16-bit timer that can be used for pulse output, external pulse width or period

measurement, and counting of external events.

This 16-bit timer consists of a reload register and a down-counter. The reload register and the

down-counter are allocated to the same address, and can be accessed with the AGT register.

See section 25, Asynchronous General-Purpose Timer (AGT) in User's Manual.

Realtime Clock (RTC)

The RTC has two counting modes, calendar count mode and binary count mode, that are

controlled by the register settings.

For calendar count mode, the RTC has a 100-year calendar from 2000 to 2099 and

automatically adjusts dates for leap years.

For binary count mode, the RTC counts seconds and retains the information as a serial value.

Binary count mode can be used for calendars other than the Gregorian (Western) calendar.

See section 26, Realtime Clock (RTC) in User's Manual.

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