ADSP-2171 데이터 시트보기 (PDF) - Analog Devices

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ADSP-2171

DSP Microcomputer

Analog Devices 

ASTAT

76543210

00000000

AZ ALU Result Zero

AN ALU Result Negative

AV ALU Overflow

AC ALU Carry

AS ALU X Input Sign

AQ ALU Quotient

MV MAC Overflow

SS Shifter Input Sign

ADSP-2171/ADSP-2172/ADSP-2173

SSTAT (Read-Only)

76543210

01010101

PC Stack Empty

PC Stack Overflow

Count Stack Empty

Count Stack Overflow

Status Stack Empty

Status Stack Overflow

Loop Stack Empty

Loop Stack Overflow

MSTAT

6543210

0000000

Data Register Bank Select

0 = primary, 1 = secondary

Bit Reverse Mode Enable (DAG1)

ALU Overflow Latch Mode Enable

AR Saturation Mode Enable

MAC Result Placement

0 = fractional, 1 = integer

Timer Enable

Go Mode Enable

System Control Register

0x3FFF

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

0000010000111111

SPORT0 Enable

1 = enabled, 0 = disabled

SPORT1 Enable

1 = enabled, 0 = disabled

SPORT1 Configure

1 = serial port

0 = FI, FO, IRQ0, IRQ1, SCLK

PWAIT

Program Memory

Wait States

BWAIT

Boot Wait States

BPAGE

Boot Page Select

BFORCE

Boot Force Bit

REV. A

Timer Registers

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

TPERIOD Period Register

0x3FFD

TCOUNT Counter Register

0x3FFC

00000000

TSCALE Scaling Register

0x3FFB

Control Registers

–11–

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