UT1750AR12WCC Просмотр технического описания (PDF) - Aeroflex UTMC

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Компоненты Описание

производитель

UT1750AR12WCC

RISC Microprocessor

Aeroflex UTMC 

FUNCTIONAL PINOUT

Legend for TYPE and ACTIVE fields:

TO = TTL output

TI = TTL input

TUI = TTL input (pull-up)

TDI = TTL input (pull-down)

TTO = Three-state TTL output

TTB = Three-state TTL bidirectional

CO = CMOS output

OSC = Oscillator input to a Pierce Oscillator inverter

AH = Active High

AL = Active Low

OSCILLATOR AND CLOCK SIGNALS

PIN NAME

OSCIN

OSCOUT

PIN NUMBER

FLTPK PGA

50

P14

TYPE

OSC

ACTIVE

--

DESCRIPTION

Oscillator Input. A 50% duty cycle crystal-drive input for

51

P15

CO

--

Oscillator Output. A 50% duty cycle, single-phase clock

output at the same frequency as the OSCIN input.

SYSCLK

52

M14

TO

--

System Output. The buffered equivalent of the OSCOUT

PROCESSOR STATUS

PIN NAME

NUI1

PIN NUMBER

FLTPK PGA

129

H2

TYPE ACTIVE

TI

AH

DESCRIPTION

Not used input 1. Internal UTMC use only. Tie either high

NUI2

44

P12

TUI

AL

Not used input 2. Internal UTMC use only. Tie low.

NUO3

M1750

STATE1

4

126

G3

TTO

AH

Not used output 3. Internal UTMC use only. NUO3 enter

high impedance state when the UT1750AR is in the test

mode (TEST=0)

45

N11 TDI

AH

Mode Select RISC/1750. A high on M1750 places the

UT1750AR into the MIL-STD-1750A emulation mode.

A low on M1750 places the UT1750AR into the RISC

mode. It is tied to an internal pull-down resistor.

54

N15 TTO

--

Processor State. This signal indicates the internal state of

the UT1750AR. A low on STATE1 indicates the

UT1750AR is executing a new RISC instruction. A high

on STATE1 indicates the UT1750AR is fetching a RISC

instruction. STATE1 enters a high-impedance state when

the UT1750AR is in the test mode (TEST=0).

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