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型號(hào)：	UPD30102GM-54-8EV
廠商：	NEC Corp.
英文描述：	64/32-bit Microprocessor
中文描述：	64/32微處理器
文件頁(yè)數(shù)：	31/701頁(yè)
文件大?。?/td>	2329K
代理商：	UPD30102GM-54-8EV

CHAPTER 1 INTRODUCTION

1.4.1 Internal Block Structure

The following provides an outline of the peripheral units.

For the CPU core, refer to

4100 CPU CORE

(1) Bus Control Unit (BCU)

4102, the bus control unit (BCU) transfers data between the V

4100 CPU core and SysAD bus. It also

controls external circuits, such as the LCD controller connected to the system bus, DRAM, ROM (flash memory

or masked ROM), and PCMCIA controller, and transfers data between the V

4102 and these external devices,

using the address and data buses.

(2) Real-time Clock Unit (RTC)

The real-time clock (RTC) is provided with an accurate counter that operates on a 32.768-kHz clock pulse

supplied from the clock generator. It is also provided with several counters and Compare registers for

controlling various interrupts.

(3) Deadman’s Switch Unit (DSU)

The Deadman’s switch unit (DSU) is used to check whether the processor is running normally. If the register of

this unit is not cleared by software within a specified period, the system is shut down.

(4) Interrupt Control Unit (ICU)

The interrupt control unit (ICU) controls interrupt requests that are caused by factors either internal or external to

4102, and informs the V

4100 CPU core when an interrupt request occurs.

(5) Power Management Unit (PMU)

The power management unit (PMU) outputs signals necessary to control the power of the entire system

including the V

4102. The signals are used to control the PLL of the V

4100 CPU core and the internal clocks

(pipeline clock, TClock, and MasterOut) in low-power modes.

(6) Direct Memory Access Address Unit (DMAAU)

The direct memory access address unit (DMAAU) controls the address of three different DMA transfers.

(7) Direct Memory Access Control Unit (DCU)

The direct memory access control unit (DCU) controls the arbitration of three different DMA transfers.

(8) Clock Mask Unit (CMU)

The clock mask unit (CMU) controls the way the clocks TClock and MasterOut are supplied from the V

CPU core to internal peripheral units.

(9) General Purpose I/O Unit (GIU)

The general purpose I/O unit (GIU) controls 49 GPIO pins.

(10)Audio Interface Unit (AIU)

The audio interface unit (AIU) executes mic-input sampling and audio signal output by controlling the internal

A/D converter and D/A converter.

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相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
UPD30102GM-66-8EV	制造商:NEC 制造商全稱:NEC 功能描述:64/32-bit Microprocessor
UPD30102S1-54-3C	制造商:NEC 制造商全稱:NEC 功能描述:64/32-bit Microprocessor
UPD30102S1-66-3C	制造商:NEC 制造商全稱:NEC 功能描述:64/32-bit Microprocessor
UPD30111S1-70-3C	制造商:未知廠家制造商全稱:未知廠家功能描述:MICROPROCESSOR\|32-BIT\|CMOS\|BGA\|224PIN\|PLASTIC
UPD30121	制造商:NEC 制造商全稱:NEC 功能描述:VR4121TM 64-/32-BIT MICROPROCESSOR

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