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TMS320C25FNLR Datasheet(PDF) 6 Page - Texas Instruments

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Part # TMS320C25FNLR
Description  SECOND-GENERATION DIGITAL SIGNAL PROCESSORS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320C25FNLR Datasheet(HTML) 6 Page - Texas Instruments

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TMS320 SECOND-GENERATION
DEVICES
SPRS010B — MAY 1987 — REVISED NOVEMBER 1990
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77001
6
functional block diagram (TMS320C2x)
Data Bus
Data Bus
16
16
16
16
16
16
Shifters (0-7)†
ACCL(16)
32
ACCH(16)
32
32
ALU(32)
32
32
32
Shifter(-6, 0, 1, 4)
16
Shifter(0-16)
7 LSB
From IR
9
9
16
16
16
32
TR(16)
16
Multiplier
PR(32)
DATA/PROG
RAM (256
× 16)
Block B0
16
16
16
16
16
Data RAM
Block B1
(256
× 16)
Block B2
(32
× 16)
3
ARB(3)
3
3
3
ARP(3)
ARAU(16)
AR4(16)
AR3(16)
AR2(16)
AR1(16)
16
AR0(16)
DP(9)
16
FSX
CLKX
DX
FSR
CLKR
DRR(16)
DXR(16)
PRD(16)
TIM(16)
IMR(6)
GREG(8)
16
16
IFR(6)
RPTC(8)
STO(16)
ST1(16)
IR(16)
3
16
16
16
16
16
D15-D0
16
16
16
16
A15-A0
INT(2-0)
MP/MC
Instruction
(8 x 16)
16
16
16
16
16
16
16
16
16
Stack
PC(16)
16
IACK
RS
BIO
MSC
HOLDA
HOLD
XF
BR
STRB
R/W
Program Bus
Program Bus
Program
ROM/
EPROM
(4096
× 16)
QIR(16)
16
16
16
6
8
16
16
16
16
PFC(16)
MCS(16)
PS
DS
IS
SYNC
MUX
MUX
MUX
MUX
MUX
MUX
MUX
DR
C
READY
Address
AR5(16)
AR6(16)
AR7(16)
RSR(16)
XSR(16)
LEGEND:
ACCH
=
Accumulator high
IFR
=
Interrupt flag register
PC
= Program counter
ACCL
=
Accumulator low
IMR
=
Interrupt mask register
PFC
= Prefetch counter
ALU
=
Arithmetic logic unit
IR
=
Instruction register
RPTC
= Repeat instruction counter
ARAU
=
Auxiliary register arithmetic unitMCS
=
Microcall stack
GREG
=
Global memory allocation register
ARB
=
Auxiliary register pointer buffer
QIR
=
Queue instruction register
RSR
= Serial port receive shift register
ARP
=
Auxiliary register pointer
PR
=
Product register
XSR
= Serial port transmit shift register
DP
=
Data memory page pointer
PRD
=
Period register for timer
AR0-AR7
= Auxiliary registers
DRR
=
Serial port data receive registerTIM
=
Timer
ST0, ST1
= Status registers
DXR
=
Serial port data transmit register
TR
=
Temporary register
C
= Carry bit


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