32170 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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32170

SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

2001-5-14 Rev.1.0

Mitsubishi Microcomputers

32170 Group, 32174 Group

SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER

Table 6 Description of Pin Function (2/5)

Type

Bus

control

Pin type

___

CS0,

CS1

__

RD

___ _______

BHW/ BHE

___ _______

BLW/ BLE

____

WAIT

_____

HREQ

____

HACK

Description Input/Output Function

Chip

select

Output

Chip select signals for external devices.

Read

Output

This signal is output when reading external devices.

Byte high

write

Byte low

write

Wait

Output

Output

Input

Indicates the byte positions to which valid are transferred when writing to

________ _______

________ _______

external devices.BHW/ BHE and BLW/ BLE correspond to the upper address

side(D0-D7 effective) and the lower address side(D8-D15 effective),respectivel.

_________

If WAIT input is low when the M32R accesses external devices, the wait cycle

extended.

Hold

request

Input

This pin is used by an external device to request control of the external bus.

__________

The M32R goes to a hold state when HREQ input is pulled low.

Hold

Output

acknowledge

This signal indicates to the external device that the M32R has entered a hold

state and relinquished control of the external bus.

Multijunction TIN0

timer

-TIN33

Timer input Input

Input pins for multijunction timer.

TO0

-TO44

Timer output Output

Output pins for multijunction timer.

TCLK0

-TCLK3

Timer clock Input

Clock input pins for multijunction timer.

A-D

AVCC0,

converter AVCC1

Analog power –

upply

AVCC0 is the power supply for the A-D0 converters. AVCC1 is the power

supply for the A-D1 converters.

Connect AVCC0 and AVCC1 to the power supply (5V or 3.3V).

AVSS0,

AVSS1

Analog ground –

AVSS0 is the analog ground for the A-D0 converters. AVSS1 is the

analog ground for the A-D1 converters.

Connect AVCC0 and AVCC1 to ground.

AD0IN0

-AD0IN15

AD1IN0

-AD1IN15

Analog input Input

One block of 16-channel analog input pin for A-D0 converter.

Two blocks of 16-channel analog input pin for A-D1 converter.

VREF0,

VREF1

_____

ADTRG

___

Interrupt SBI

controller

Reference Input

voltage input

Conversion

trigger

Input

System

break

interrupt

Input

VREF0 is the reference voltage input pin (5V or 3.3V) for the A-D0 converters.

VREF1 is the reference voltage input pin (5V or 3.3V) for the A-D1 converters.

Hardware trigger input pin to start A-D conversion.

System break interrupt(SBI) input pin of the interrupt controller.

11

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