Texas Instruments SM320C30HFGM50, SM320C30TBM33, SM320C30GBM33, SM320C30GBM40, SM320C30GBM50 Datasheet

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SMJ320C30 DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

2

D ± 55°C to 125°C Operating Temperature

Range, QML Processing

D Processed to MIL-PRF-38535 (QML)

D Performance

± SMJ320C30-40 (50-ns Cycle)

40MFLOPS

20MIPS

±SMJ320C30-50 (40-ns Cycle)

50MFLOPS

25 MIPS

DTwo 1K-Word × 32-Bit Single-Cycle

Dual-Access On-Chip RAM Blocks

DValidated Ada Compiler

D64-Word × 32-Bit Instruction Cache

D32-Bit Instruction and Data Words,

24-Bit Addresses

D40 / 32-Bit Floating-Point /Integer Multiplier and Arithmetic Logic Unit (ALU)

DParallel ALU and Multiplier Execution in a Single Cycle

DOn-Chip Direct Memory Access (DMA) Controller for Concurrent I/O and CPU Operation

DInteger, Floating-Point, and Logical Operations

DOne 4K-Word × 32-Bit Single-Cycle

Dual-Access On-Chip ROM Block

DTwo 32-Bit External Ports (24and 13-Bit Address)

DTwo Serial Ports With Support for 8- / 16- /24- /32-Bit Transfers

DPackaging

±181-Pin Grid Array Ceramic Package (GB Suffix)

±196-Pin Ceramic Quad Flatpack With Nonconductive Tie-Bar (HFG Suffix)

DSMD Approval for 40and 50-MHz Versions

DTwo Address Generators With Eight Auxiliary Registers and Two Auxiliary Register Arithmetic Units (ARAUs)

DZero-Overhead Loops With Single-Cycle Branches

DInterlocked Instructions for Multiprocessing Support

D32-Bit Barrel Shifter

DEight Extended-Precision Registers (Accumulators)

DTwoand Three-Operand Instructions

DConditional Calls and Returns

DBlock Repeat Capability

DFabricated Using Enhanced Performance Implanted CMOS (EPICt) by Texas Instruments (TIt)

DTwo 32-Bit Timers

description

The SMJ320C30 internal busing and special digital signal processor (DSP) instruction set has the speed and flexibility to execute up to 50 MFLOPS. The SMJ320C30 device optimizes speed by implementing functions in hardware that other processors implement through software or microcode. This hardware-intensive approach provides performance previously unavailable on a single chip. The emphasis on total system cost has resulted in a less expensive processor that can be designed into systems currently using costly bit-slice processors.

DSMJ320C30-40: 50-ns single-cycle execution time, 5% supply

DSMJ320C30-50: 40-ns single-cycle execution time, 5% supply

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

EPIC and TI are trademarks of Texas Instruments Incorporated.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

Copyright 1998, Texas Instruments Incorporated

On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.

1

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

181-Pin GB Grid Array Package

( BOTTOM VIEW )

A B C D E F G H J K L M N P R

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

description (continued)

196-Pin HFG Quad Flatpack

( TOP VIEW )

196

148

1

147

DVDD DVSS

 

 

VDD

 

VSS

VSS

 

VDD

 

DVSS

DVDD

49

99

50

98

The SMJ320C30 can perform parallel multiply and ALU operations on integer or floating-point data in a single cycle. Each processor also possesses a general-purpose register file, a program cache, dedicated ARAUs, internal dual-access memories, one DMA channel supporting concurrent I/O, and a short machine-cycle time. High performance and ease of use are results of these features.

General-purpose applications are enhanced by the large address space, multiprocessor interface, internally and externally generated wait states, two external interface ports, two timers, two serial ports, and multiple interrupt structure. The SMJ320C30 supports a wide variety of system applications from host processor to dedicated coprocessor.

High-level language support is implemented easily through a register-based architecture, large address space, powerful addressing modes, flexible instruction set, and well-supported floating-point arithmetic.

2

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

Texas Instruments SM320C30HFGM50, SM320C30TBM33, SM320C30GBM33, SM320C30GBM40, SM320C30GBM50 Datasheet

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

functional block diagram

RDY

HOLD

HOLDA

STRB R / W

D31± D0

A23 ± A0

RESET

INT(3 ± 0) IACK

MC / MP

XF(1,0)

VDD IODVDD ADVDD PDVDD DDVDD MDVDD

VSS

DVSS

CVSS

IVSS

VBBP

VSUBS X1

X2 / CLKIN

H1

H3 EMU(6 ± 0) RSV(10 ± 0)

Cache (64 ×32)

 

32

24

 

PDATA Bus

 

 

PADDR Bus

MUX

DDATA Bus

DADDR1 Bus

 

 

DADDR2 Bus

 

DMADATA Bus

 

DMAADDR Bus

 

 

32

 

 

IR

PC

CPU1

Controller

RAM

 

RAM

ROM

Block 0

 

Block 1

Block

(1K

×32)

 

(1K ×32)

(4K

×32)

24

32

24

32

24

32

MUX

24

 

32

 

24

24

32

24

 

 

 

 

 

 

 

DMA Controller

 

 

 

 

 

 

 

Global-Control

 

 

 

 

 

 

 

Register

MUX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Source-Address

 

 

 

CPU1

 

 

Register

 

 

 

CPU2

 

 

Destination-

 

 

 

 

 

 

 

 

 

 

REG1

 

 

Address

 

 

 

 

 

Register

 

 

 

REG2

 

 

Transfer-

 

 

 

 

 

 

 

Counter

REG1

REG2

32

32

40

40

 

Register

 

 

 

 

 

32-Bit

 

 

 

 

Multiplier

 

Barrel

 

 

 

 

 

 

 

Shifter

 

 

 

 

40

 

 

ALU

 

 

 

 

 

 

 

 

 

 

 

40

 

 

 

40

 

 

 

 

 

Extended-

40

 

 

40

 

 

 

 

 

Precision

 

 

 

 

32

 

Registers

40

 

 

 

 

(R7±R0)

 

 

 

 

 

 

 

 

DISP0, IR0, IR1

ARAU0

BK

ARAU1

 

 

24

 

24

 

 

24

Auxiliary

24

32

Registers

 

(AR0 ± AR7)

 

32

 

 

32

 

 

32

 

 

32

Other

32

Registers

 

 

(12)

 

Peripheral Data Bus

Peripheral Address Bus

Serial Port 0

Serial-Port-Control

Register

Receive/Transmit

(R/X) Timer Register

Data-Transmit

Register

Data-Receive

Register

Serial Port 1

Serial-Port-Control

Register

Receive/Transmit

(R/X) Timer Register

Data-Transmit

Register

Data-Receive

Register

Timer 0

Global-Control

Register

Timer-Period

Register

Timer-Counter

Register

Timer 1

Global-Control

Register

Timer-Period

Register

Timer-Counter

Register

Port Control

Primary-Control

Register

Expansion-Control

Register

XRDY

MSTRB

IOSTRB

XR / W XD31±XD0 XA12 ±XA0

FSX0

DX0

CLKX0

FSR0

DR0 CLKR0

FSX1

DX1

CLKX1

FSR1

DR1 CLKR1

TCLK0

TCLK1

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

3

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

memory map

Figure 1 shows the memory map for the SMJ320C30. See the TMS320C3x User's Guide (literature number SPRU031) for a detailed description of this memory mapping. Figure 2 shows the reset, interrupt, and trap vector/branches memory-map locations. Figure 3 shows the peripheral bus memory-mapped registers.

0h

03Fh

040h

7FFFFFh

800000h

801FFFh

802000h

803FFFh

804000h

805FFFh

806000h

807FFFh

808000h

8097FFh

809800h

809BFFh

809C00h

809FFFh

80A000h

Reset, Interrupt, Trap

Vectors, and Reserved

Locations (64) (External

STRB Active)

External

STRB Active

(8M Words ± 64 Words)

Expansion-Bus

MSTRB Active

(8K Words)

Reserved

(8K Words)

Expansion-Bus

IOSTRB Active

(8K Words)

Reserved

(8K Words)

Peripheral-Bus

Memory-Mapped

Registers

(6K Words Internal)

RAM Block 0

(1K Word Internal)

RAM Block 1

(1K Word Internal)

External

STRB Active

(8M Words ± 40K Words)

0h

0BFh

0C0h

0FFFh

1000h

7FFFFFh

800000h

801FFFh

802000h

803FFFh

804000h

805FFFh

806000h

807FFFh

808000h

8097FFh

809800h

809BFFh

809C00h

809FFFh

80A000h

Reset, Interrupt,

Trap Vectors, and Reserved

Locations (192)

ROM (Internal)

External

STRB Active

(8M Words ± 4K Words)

Expansion-Bus

MSTRB Active

(8K Words)

Reserved

(8K Words)

Expansion-Bus

IOSTRB Active

(8K Words)

Reserved

(8K Words)

Peripheral-Bus

Memory-Mapped

Registers

(6K Words Internal)

RAM Block 0

(1K Word Internal)

RAM Block 1

(1K Word Internal)

External

STRB Active

(8M Words ± 40K Words)

0FFFFFFh

 

0FFFFFFh

 

(a) Microprocessor Mode

(b) Microcomputer Mode

 

 

Figure 1. Memory Map

4

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

 

 

 

 

 

 

 

 

SMJ320C30

 

 

 

 

 

DIGITAL SIGNAL PROCESSOR

 

 

 

 

 

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

 

 

 

 

 

 

 

 

 

 

memory map (continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00h

Reset

00h

Reset

 

01h

 

 

 

01h

 

 

 

 

 

 

 

 

 

 

INT0

 

 

INT0

 

 

02h

 

02h

 

 

 

 

 

INT1

 

 

INT1

 

 

03h

 

 

 

03h

 

 

 

 

 

 

 

 

 

 

INT2

 

 

INT2

 

 

04h

 

04h

 

 

 

 

 

INT3

 

 

INT3

 

 

05h

XINT0

05h

XINT0

 

 

 

 

 

 

 

 

 

 

06h

RINT0

06h

RINT0

 

 

 

 

 

 

 

 

 

 

07h

XINT1

07h

XINT1

 

 

 

 

 

 

 

 

 

 

08h

RINT1

08h

RINT1

 

 

 

 

 

 

 

 

 

 

09h

TINT0

09h

TINT0

 

0Ah

 

 

 

0Ah

 

 

 

 

TINT1

TINT1

 

0Bh

 

 

 

0Bh

 

 

 

 

DINT

DINT

 

0Ch

 

 

 

0Ch

 

 

 

 

 

Reserved

Reserved

 

 

1Fh

1Fh

 

 

 

 

 

 

 

 

 

20h

TRAP 0

20h

TRAP 0

 

 

 

 

 

 

 

 

 

 

 

 

.

 

 

.

 

 

 

 

.

 

 

.

 

 

 

 

.

 

 

.

 

 

 

 

 

 

 

 

 

 

 

 

3Bh

TRAP 27

3Bh

TRAP 27

 

3Ch

 

 

 

3Ch

 

 

 

 

 

Reserved

Reserved

 

 

3Fh

BFh

 

 

 

 

 

 

 

 

 

 

(a) Microprocessor Mode

 

(a) Microcomputer Mode

Figure 2. Reset, Interrupt, and Trap Vector/Branches Memory-Map Locations

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

5

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

memory map (continued)

808000h

DMA Global Control

808004h

 

 

DMA Source Address

808006h

 

 

DMA Destination Address

808008h

 

 

DMA Transfer Counter

808020h

 

 

Timer 0 Global Control

808024h

 

 

Timer 0 Counter

808028h

 

 

Timer 0 Period

808030h

 

 

Timer 1 Global Control

 

 

808034h

Timer 1 Counter

 

 

 

 

808038h

Timer 1 Period Register

 

 

 

 

808040h

Serial Port 0 Global Control

808042h

 

 

FSX/DX/CLKX Serial Port 0 Control

808043h

FSR/DR/CLKR Serial Port 0 Control

 

 

808044h

Serial Port 0 R/X Timer Control

 

 

808045h

Serial Port 0 R/X Timer Counter

 

 

808046h

Serial Port 0 R/X Timer Period

 

 

 

 

808048h

Serial Port 0 Data Transmit

 

 

 

 

80804Ch

Serial Port 0 Data Receive

 

 

 

 

808050h

Serial Port 1 Global Control

808052h

 

 

FSX/DX/CLKX Serial Port 1 Control

808053h

FSR/DR/CLKR Serial Port 1 Control

808054h

Serial Port 1 R/X Timer Control

808055h

 

Serial Port 1 R/X Timer Counter

808056h

Serial Port 1 R/X Timer Period

808058h

 

 

Serial Port 1 Data Transmit

80805Ch

 

Serial Port 1 Data Receive

808060h

 

Expansion-Bus Control

 

 

808064h

Primary-Bus Control

 

 

 

 

² Shading denotes reserved address locations

Figure 3. Peripheral Bus Memory-Mapped Registers²

6

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

pin functions

This section gives signal descriptions for the SMJ320C30 devices in the microprocessor mode. The following tables list each signal, the number of pins, type of operating mode(s) (that is, input, output, or high-impedance state as indicated by I, O, or Z, respectively), and a brief function description. All pins labeled NC have special functions and should not be connected by the user. A line over a signal name (for example, RESET) indicates that the signal is active low (true at logic-0 level). The signals are grouped according to functions.

Pin Functions

 

 

 

 

 

 

 

 

 

 

 

 

PIN

 

 

TYPE²

 

 

 

 

 

 

 

 

 

 

DESCRIPTION

 

CONDITIONS

 

 

 

NAME

QTY³

 

 

 

 

 

 

 

 

 

 

 

WHEN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIGNAL IS Z TYPE§

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRIMARY BUS INTERFACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D31 ± D0

32

 

I / O / Z

32-bit data port of the primary bus interface

S

H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A23± A0

24

 

O / Z

24-bit address port of the primary bus interface

S

H

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Read/ write for primary bus interface. R /

W

is high when a read is performed and low

 

 

 

 

 

R / W

1

 

O / Z

S

H

R

 

 

 

when a write is performed over the parallel interface.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

O / Z

External access strobe for the primary bus interface

S

H

 

 

 

STRB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ready.

 

indicates that the external device is prepared for a primary bus interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RDY

 

 

 

 

 

RDY

1

 

I

 

 

 

 

 

 

transaction to complete.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hold for primary bus interface. When

 

 

 

 

is a logic low, any ongoing transaction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOLD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is completed. A23 ± A0, D31 ± D0, STRB, and R / W are in the high-impedance state

 

 

 

 

 

HOLD

1

 

I

 

 

 

 

 

 

and all transactions over the primary bus interface are held until HOLD becomes a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

logic high or the NOHOLD bit of the primary bus control register is set.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hold acknowledge for primary bus interface.

HOLDA

is generated in response to a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

logic low on HOLD. HOLDA indicates that A23 ± A0, D31 ± D0, STRB, and R / W are

 

 

 

 

 

HOLDA

 

 

 

 

 

1

 

O / Z

in the high-impedance state and that all transactions over the bus are held.

HOLDA

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is high in response to a logic high of

HOLD

or when the NOHOLD bit of the primary

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bus control register is set.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXPANSION BUS INTERFACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XD31± XD0

32

 

I / O / Z

32-bit data port of the expansion bus interface

S

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XA12± XA0

13

 

O / Z

13-bit address port of the expansion bus interface

S

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Read/ write signal for expansion bus interface. When a read is performed, XR /

 

 

is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

 

 

XR / W

1

 

O / Z

S

 

R

 

 

 

held high; when a write is performed, XR / W is low.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

O / Z

External memory access strobe for the expansion bus interface

S

 

 

 

 

MSTRB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

O / Z

External I / O access strobe for the expansion bus interface

S

 

 

 

 

IOSTRB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ready signal.

XRDY

 

indicates that the external device is prepared for an expansion

 

 

 

 

 

XRDY

1

 

I

 

 

 

 

 

 

bus interface transaction to complete.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL SIGNALS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset. When

RESET

is a logic low, the device is in the reset condition. When

RESET

 

 

 

 

 

 

RESET

1

 

I

 

 

 

 

 

 

becomes a logic high, execution begins from the location specified by the reset vector.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

±

 

 

 

 

 

 

4

 

I

External interrupts

 

 

 

 

 

INT3

INT0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interrupt acknowledge.

IACK

is set to a logic high by the IACK instruction.

IACK

can

 

 

 

 

 

IACK

1

 

O / Z

S

 

 

 

 

 

be used to indicate the beginning or end of an interrupt-service routine.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MC /

 

 

 

 

 

 

 

 

 

 

1

 

I

Microcomputer/ microprocessor mode

 

 

 

 

 

MP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XF1, XF0

2

 

I / O / Z

External flags. XF1 and XF0 are used as general-purpose I / Os or to support

S

 

R

 

 

 

interlocked processor instructions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

² I = input, O = output, Z = high-impedance state, NC = no connect

 

 

 

 

³ For GB package

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

§ S = SHZ active, H =

HOLD

active, R =

RESET

active

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

7

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

Pin Functions (Continued)

 

PIN

TYPE²

DESCRIPTION

 

CONDITIONS

NAME

QTY³

 

WHEN

 

 

SIGNAL IS Z TYPE§

 

 

 

SERIAL PORT 0 SIGNALS

 

 

 

 

 

 

 

 

CLKX0

1

I / O / Z

Serial port 0 transmit clock. CLKX0 is the serial-shift clock for the serial port 0

S

R

transmitter.

 

 

 

 

 

 

 

 

 

 

 

DX0

1

I / O / Z

Data transmit output. Serial port 0 transmits serial data on DX0.

S

R

 

 

 

 

 

 

FSX0

1

I / O / Z

Frame synchronization pulse for transmit. The FSX0 pulse initiates the transmit-data

S

R

process over DX0.

 

 

 

 

 

 

 

 

 

 

 

CLKR0

1

I / O / Z

Serial port 0 receive clock. CLKR0 is the serial-shift clock for the serial port 0 receiver.

S

R

 

 

 

 

 

 

DR0

1

I / O / Z

Data receive. Serial port 0 receives serial data on DR0.

S

R

 

 

 

 

 

 

FSR0

1

I / O / Z

Frame synchronization pulse for receive. The FSR0 pulse initiates the receive-data

S

R

process over DR0.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SERIAL PORT 1 SIGNALS

 

 

 

 

 

 

 

 

CLKX1

1

I / O / Z

Serial port 1 transmit clock. CLKX1 is the serial-shift clock for the serial port 1

S

R

transmitter.

 

 

 

 

 

 

 

 

 

 

 

DX1

1

I / O / Z

Data transmit output. Serial port 1 transmits serial data on DX1.

S

R

 

 

 

 

 

 

FSX1

1

I / O / Z

Frame synchronization pulse for transmit. The FSX1 pulse initiates the transmit-data

S

R

process over DX1.

 

 

 

 

 

 

 

 

 

 

 

CLKR1

1

I / O / Z

Serial port 1 receive clock. CLKR1 is the serial-shift clock for the serial port 1 receiver.

S

R

 

 

 

 

 

 

DR1

1

I / O / Z

Data receive. Serial port 1 receives serial data on DR1.

S

R

 

 

 

 

 

 

FSR1

1

I / O / Z

Frame synchronization pulse for receive. The FSR1 pulse initiates the receive-data

S

R

process over DR1.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIMER 0 SIGNALS

 

 

 

 

 

 

 

 

TCLK0

1

I / O / Z

Timer clock 0. As an input, TCLK0 is used by timer 0 to count external pulses. As an

S

R

output, TCLK0 outputs pulses generated by timer 0.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIMER 1 SIGNALS

 

 

 

 

 

 

 

 

TCLK1

1

I / O / Z

Timer clock 1. As an input, TCLK1 is used by timer 1 to count external pulses. As an

S

R

output, TCLK1 outputs pulses generated by timer 1.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUPPLY AND OSCILLATOR SIGNALS (see Note 1)

 

 

 

 

 

 

 

 

V

4

I

5-V supply

 

 

DD

 

 

 

 

 

IODVDD

2

I

5-V supply

 

 

ADVDD

2

I

5-V supply

 

 

PDVDD

1

I

5-V supply

 

 

DDVDD

2

I

5-V supply

 

 

MDV

1

I

5-V supply

 

 

DD

 

 

 

 

 

VSS

4

I

Ground

 

 

DVSS

4

I

Ground

 

 

CVSS

2

I

Ground

 

 

² I = input, O = output, Z = high-impedance state, NC = no connect ³ For GB package

§ S = SHZ active, H = HOLD active, R = RESET active Recommended decoupling capacitor is 0.1 F.

NOTE 1: CVSS, VSS, and IVSS are on the same plane.

8

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

 

 

 

 

 

 

 

 

SMJ320C30

 

 

 

 

 

 

 

DIGITAL SIGNAL PROCESSOR

 

 

 

 

 

 

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Functions (Continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

PIN

 

TYPE²

DESCRIPTION

CONDITIONS

 

NAME

QTY³

WHEN

 

 

 

 

 

SIGNAL IS Z TYPE§

 

 

 

 

 

 

SUPPLY AND OSCILLATOR SIGNALS (see Note 1) (CONTINUED)

 

 

 

 

 

 

 

 

 

 

 

 

IVSS

1

I

Ground

 

 

VBBP

1

NC

VBB pump oscillator output

 

 

VSUBS

1

I

Substrate pin. Tie to ground

 

 

X1

1

O

Output from the internal oscillator for the crystal. If a crystal is not used, X1 must

 

 

be left unconnected.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X2 / CLKIN

1

I

Input to the internal oscillator from the crystal or a clock

 

 

 

 

 

 

 

 

 

 

 

 

H1

1

O / Z

External H1 clock. H1 has a period equal to twice CLKIN.

S

 

 

 

 

 

 

 

 

 

 

 

H3

1

O / Z

External H3 clock. H3 has a period equal to twice CLKIN.

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESERVED (see Note 2)

 

 

 

 

 

 

 

 

 

 

 

 

EMU0± EMU2

3

I

Reserved. Use pullup resistors to 5 V

 

 

 

 

 

 

 

 

 

 

 

 

EMU3

1

O / Z

Reserved

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown high impedance. When active, EMU4 /

 

shuts down the SMJ320C30

 

 

 

 

 

 

 

SHZ

 

 

 

 

 

 

 

and places all pins in the high-impedance state. EMU4 / SHZ is used for board-level

 

 

EMU4/

SHZ

 

1

I

testing to ensure that no dual-drive conditions occur. CAUTION: A low on SHZ

 

 

 

 

 

 

 

corrupts SMJ320C30 memory and register contents. Reset the device with SHZ

 

 

 

 

 

 

 

high to restore it to a known operating condition.

 

 

 

 

 

 

 

 

EMU5, EMU6

2

NC

Reserved

 

 

 

 

 

 

 

 

RSV0 ± RSV4

5

I

Reserved. Tie pins directly to 5 V

 

 

 

 

 

 

 

 

RSV5 ± RSV10

6

I / O

Reserved. Use pullups on each pin to 5 V

 

 

 

 

 

 

 

 

Locator

1

NC

Reserved

 

 

² I = input, O = output, Z = high-impedance state, NC = No Connect ³ For GB package

§ S = SHZ active, H = HOLD active, R = RESET active NOTES: 1. CVSS, VSS, IVSS are on the same plane.

2.The connections specified for the reserved pins must be followed. For best results, 18-kΩ ± 22-kΩ pullup resistors are recommended. All 5-V supply pins must be connected to a common supply plane, and all ground pins must be connected to a common ground plane.

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

9

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

Pin Assignments

 

 

PIN

 

PIN

 

 

 

 

 

 

 

PIN

 

PIN

 

 

PIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NUMBER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NUMBER

 

 

 

 

 

 

NUMBER

 

 

 

NUMBER

 

 

NUMBER

 

 

 

 

 

 

 

NAME

 

 

 

NAME

 

 

NAME

 

 

 

NAME

 

 

NAME

GB

HFG

 

GB

HFG

GB

HFG

GB

HFG

 

GB

HFG

PKG

PKG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PKG

PKG

 

 

 

 

 

 

PKG

PKG

 

 

 

PKG

PKG

 

 

PKG

PKG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F15

82

 

 

A0

C5

139

D5

P2

195

DX1

L2

185

 

RSV6

R8

29

XD11

G12

81

 

 

A1

D6

138

D6

F14

83

EMU0

K4

186

 

RSV7

R9

30

XD12

G13

80

 

 

A2

A4

137

D7

E15

84

EMU1

M1

187

 

RSV8

P9

31

XD13

G14

79

 

 

A3

B5

136

D8

F13

85

EMU2

L3

188

 

RSV9

N9

32

XD14

G15

78

 

 

A4

C6

135

D9

E14

86

EMU3

M2

189

 

RSV10

R10

33

XD15

H15

77

 

 

A5

A5

134

D10

F12

87

EMU4 /

 

 

D12

100

 

ADVDD{

M9

34

XD16

 

 

SHZ

 

H14

72

 

 

A6

B6

133

D11

C1

155

EMU5

H11

64

 

ADVDD{

P10

35

XD17

J15

71

 

 

A7

D7

132

D12

M6

11

EMU6

D4

114

 

DDVDD{

R11

36

XD18

J14

70

 

 

A8

A6

131

D13

B3

145

H1

E8

147

 

DDVDD{

N10

37

XD19

J13

69

 

 

A9

C7

130

D14

A1

146

H3

L8

15

 

IODVDD{

P11

38

XD20

K15

68

 

 

A10

B7

129

D15

C2

152

X1

M12

16

 

IODVDD{

R12

39

XD21

J12

67

 

 

A11

A7

128

D16

B1

151

X2 / CLKIN

 

49

 

IODVDD{

M10

40

XD22

K14

66

 

 

A12

A8

127

D17

P4

9

TCLK0

H5

162

 

MDVDD{

N11

41

XD23

L15

65

 

 

A13

B8

122

D18

N5

10

TCLK1

 

163

 

MDVDD{

P12

42

XD24

K13

63

 

 

A14

A9

121

D19

G2

169

XF0

M4

1

 

PDVDD{

R13

43

XD25

L14

62

 

 

A15

B9

120

D20

G3

168

XF1

B2

51

 

CVSSw

R14

44

XD26

M15

61

 

 

A16

C9

119

D21

D3

154

VBBP

P14

52

 

CVSSw

M11

45

XD27

K12

60

 

 

A17

A10

118

D22

E4

153

VSUBS

 

25

 

VDD}

N12

46

XD28

L13

59

 

 

A18

D9

117

D23

H4

123

VDD}

 

26

 

VDD}

P13

47

XD29

M14

58

 

 

A19

B10

116

D24

D8

73

VDD}

 

172

 

VDD}

R15

48

XD30

N15

57

 

 

A20

A11

115

D25

M8

74

VDD}

 

173

 

VDD}

P15

53

XD31

M13

56

 

 

A21

C10

113

D26

H12

124

VDD}

C8

28

 

VSSw

 

2

DVDD

L12

55

 

 

A22

B11

112

D27

N8

27

VSSw

H3

75

 

VSSw

 

101

DVDD

N14

54

 

 

A23

A12

111

D28

A13

107

XA0

H13

76

 

VSSw

C3

50

DVSSW

E5

 

 

 

LOCATOR/NC

D10

110

D29

A14

106

XA1

 

125

 

VSSw

C13

98

DVSSW

G1

170

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C11

109

D30

D11

105

XA2

 

126

 

VSSw

N3

148

DVSSW

 

 

IACK

 

 

H2

171

 

 

 

 

 

 

 

 

 

 

 

 

 

B12

108

D31

C12

104

XA3

 

149

 

VSSw

N13

196

DVSSW

 

 

INT0

 

 

H1

176

 

 

 

 

 

 

 

 

 

 

 

 

 

F3

161

 

 

 

 

 

 

B13

103

XA4

 

150

 

VSSw

B14

96

IVSSw

 

 

INT1

HOLD

 

 

J1

177

 

 

 

 

 

 

 

 

 

 

 

 

 

E2

160

 

 

 

 

 

A15

102

XA5

 

174

 

VSSw

 

97

IVSSw

 

 

INT2

HOLDA

 

 

 

J2

178

 

 

 

 

 

 

 

 

 

 

 

 

 

D2

156

 

 

 

 

 

B15

95

XA6

 

175

 

VSSw

 

 

 

 

 

INT3

XRDY

 

 

 

 

 

D15

88

 

 

MC /

 

 

 

 

 

 

 

D1

159

XR /

 

 

C14

94

XA7

 

99

 

VSUBS

 

 

 

 

 

MP

W

 

 

 

 

 

E3

157

 

 

 

 

 

 

 

 

 

 

P3

4

FSR0

E12

93

XA8

R4

12

 

XD0

 

 

 

 

 

MSTRB

 

 

 

 

E1

164

 

 

 

 

 

 

 

 

R2

7

FSX0

D13

92

XA9

P5

13

 

XD1

 

 

 

 

 

RDY

 

 

 

 

F1

167

 

 

 

 

 

 

 

N4

5

CLKR0

C15

91

XA10

N6

14

 

XD2

 

 

 

 

 

RESET

 

 

 

 

G4

166

 

 

R /

 

 

 

 

M5

6

CLKX0

D14

90

XA11

R5

17

 

XD3

 

 

 

 

 

W

 

 

 

 

F2

165

 

 

 

 

 

 

R1

3

DR0

E13

89

XA12

P6

18

 

XD4

 

 

 

 

 

STRB

 

 

 

 

F4

158

 

 

 

 

R3

8

DX0

J3

179

RSV0

M7

19

 

XD5

 

 

 

 

 

IOSTRB

 

 

 

 

C4

144

 

 

D0

M3

191

FSR1

J4

180

RSV1

R6

20

 

XD6

 

 

 

D5

143

 

 

D1

P1

194

FSX1

K1

181

RSV2

N7

21

 

XD7

 

 

 

A2

142

 

 

D2

L4

192

CLKR1

K2

182

RSV3

P7

22

 

XD8

 

 

 

A3

141

 

 

D3

N2

193

CLKX1

L1

183

RSV4

R7

23

 

XD9

 

 

 

B4

140

 

 

D4

N1

190

DR1

K3

184

RSV5

P8

24

 

XD10

 

 

 

² ADVDD, DDVDD, IODVDD, MDVDD, and PDVDD are on a common plane internal to the device. ³ VDD is on a common plane internal to the device.

§ VSS, CVSS, and IVSS are on a common plane internal to the device. DVSS is on a common plane internal to the device.

10

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

absolute maximum ratings over operating case temperature range (unless otherwise noted)²

Supply voltage range, VCC (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . ±0.3 V to 7

V

Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. ± 0.3 V to 7

V

Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. ±0.3 V to 7

V

Continuous power dissipation (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . 3.15 W

Operating case temperature range, TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

± 55°C to 125°C

Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

± 65°C to 150°C

² Stresses beyond those listed under ªabsolute maximum ratingsº may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under ªrecommended operating conditionsº is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 3. All voltage values are with respect to VSS.

4.Actual operating power is less. This value was obtained under specially produced worst-case test conditions, which are not sustained during normal device operation. These conditions consist of continuous parallel writes of a checkerboard pattern to both

primary and extension buses at the maximum rate possible. See normal (ICC) current specification in the electrical characteristics table and also read Calculation of TMS320C30 Power Dissipation Application Report (literature number SPRA020).

recommended operating conditions (see Note 5)

 

 

 

 

MIN

NOM³

MAX

UNIT

VDD

Supply voltage (AVDD, etc.)

4.75

5

5.25

V

VSS

Supply voltage (CVSS, etc.)

 

0

 

V

VIH

High-level input voltage

2.1

 

VDD + 0.3*

V

VTH

High-level input voltage for CLKIN

3

 

VDD + 0.3*

V

VIL

Low-level input voltage

± 0.3*

 

0.8

V

IOH

High-level output current

 

 

± 300

A

IOL

Low-level output current

 

 

2

mA

TC

Operating case temperature (see Note 6)

± 55

 

125

°C

³ All nominal values are at V

DD

= 5 V, T (ambient-air temperature)= 25°C.

 

 

 

 

 

 

A

 

 

 

 

* This parameter is not production tested.

NOTE 5: All input and output voltage levels are TTL compatible.

NOTE 6: TC MAX at maximum rated operating conditions at any point on the case, TC MIN at initial (time zero) power up

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11

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

electrical characteristics over recommended ranges of supply voltage (unless otherwise noted) (see Note 5)

 

PARAMETER

TEST CONDITIONS²

MIN

TYP³

MAX

UNIT

VOH

High-level output voltage

VDD = MIN,

IOH = MAX

2.4

3

 

V

VOL

Low-level output voltage

For XA12 ± XA0

VDD = MIN,

IOL = MAX

 

 

0.6*

V

All others

VDD = MIN,

IOL = MAX

 

0.3

0.6

V

 

 

 

IZ

High-impedance current

VDD = MAX

 

 

 

± 20

µA

II

Input current

VI = VSS to VDD

 

 

± 10

µA

IIP

Input current

Inputs with internal pullups (see Note 7)

± 600

 

20

µA

IIC

Input current ( X2 / CLKIN)

VI = VSS to VDD

 

 

± 50

µA

ICC

Supply current

VDD = MAX,

TA = 25°C,

 

200

600

mA

tc(CI) = MIN,

See Note 8

 

 

 

 

 

 

 

 

IDD

Supply current, standby; IDLE2, clock shut off

VDD = 5 V, TA = 25°C

 

50

 

mA

Ci

Input capacitance

 

 

 

 

15*

pF

Co

Output capacitance

 

 

 

 

20*

pF

Cx

X2 / CLKIN capacitance

 

 

 

 

25*

pF

² For conditions shown as MIN / MAX, use the appropriate value specified in recommended operating conditions.

³All typical values are at VDD = 5 V, TA = 25°C.

*This parameter is not production tested.

NOTES: 5. All input and output voltage levels are TTL compatible.

7.Pins with internal pullup devices: INT0 ± INT3, MC / MP, RSV0 ± RSV10. Although RSV0 ± RSV10 have internal pullup devices, external pullups should be used on each pin as identified in the pin function tables.

8.Actual operating current is less than this maximum value. This value was obtained under specially produced worst-case test conditions, which are not sustained during normal device operation. These conditions consist of continuous parallel writes of a checkerboard pattern to both primary and expansion buses at the maximum rate possible. See Calculation of TMS320C30 Power Dissipation Application Report (literature number SPRA020).

PARAMETER MEASUREMENT INFORMATION

 

 

 

 

IOL

 

 

 

Tester Pin

VLOAD

 

 

 

 

 

 

 

 

Output

 

 

 

 

 

 

 

 

 

Under

 

Electronics

 

 

 

 

 

 

 

 

 

Test

 

 

 

 

 

 

 

 

 

 

CT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IOH

 

 

Where: IOL

= 2 mA (all outputs)

 

 

 

 

 

 

 

 

 

 

IOH

= 300 µA (all outputs)

 

 

VLOAD = Selected to emulate 50 Ω termination (typical value = 1.54 V).

 

 

CT

= 80-pF typical load-circuit capacitance

 

 

Figure 4. Test Load Circuit

12

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

PARAMETER MEASUREMENT INFORMATION

signal transition levels

TTL-level outputs are driven to a minimum logic-high level of 2.4 V and to a maximum logic-low level of 0.6 V. Output transition times are specified as follows:

DFor a high-to-low transition on a TTL-compatible output signal, the level at which the output is said to be no longer high is 2 V and the level at which the output is said to be low is 1 V.

DFor a low-to-high transition, the level at which the output is said to be no longer low is 1 V and the level at which the output is said to be high is 2 V.

2.4 V

2 V

1 V

0.6 V

Figure 5. TTL-Level Outputs

Transition times for TTL-compatible inputs are specified as follows:

DFor a high-to-low transition on an input signal, the level at which the input is said to be no longer high is

2.1V and the level at which the input is said to be low is 0.8 V.

DFor a low-to-high transition on an input signal, the level at which the input is said to be no longer low is

0.8V and the level at which the input is said to be high is 2.1 V.

2.1 V

0.8 V

Figure 6. TTL-Level Inputs

POST OFFICE BOX 1443 HOUSTON, TEXAS 77251±1443

13

SMJ320C30

DIGITAL SIGNAL PROCESSOR

SGUS014F ± FEBRUARY 1991 ± REVISED FEBRUARY 1999

PARAMETER MEASUREMENT INFORMATION

timing parameter symbology

Timing parameter symbols used herein were created in accordance with JEDEC Standard 100-A. To shorten the symbols, some of the terminal names and other related terminology have been abbreviated as follows, unless otherwise noted:

A

A23 ± A0

IACK

IACK

ASYNCH

Asynchronous reset signals include XF0, XF1,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLKX0, DX0, FSX0, CLKR0, DR0, FSR0, CLKX1,

INT

INT3±

 

 

 

 

INT0

 

 

 

 

 

 

 

 

 

 

 

 

 

DX1, FSX1, CLKR1, DR1, FSR1, TCLK0, and TCLK1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CH

CLKX includes CLKX0 and CLKX1

IOS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IOSTRB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CI

CLKIN

(M)S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and

 

 

 

(M)STRB

includes

MSTRB

STRB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

Control signals include

STRB,

 

MSTRB,

and

IOSTRB

 

RDY

RDY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

D31 ± D0

RESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DR

Includes DR0, DR1

RW

R /

W

 

 

 

 

 

 

 

 

 

 

 

 

DX

Includes DX0, DX1

S

 

 

 

 

 

 

 

 

 

 

 

STRB

 

 

 

 

 

 

 

 

 

 

FS

FSX/R includes FSX0, FSX1, FSR0, and FSR1

SCK

CLKX/R includes CLKX0, CLKX1,

 

CLKR0, and CLKR1

 

 

 

 

 

 

 

 

 

 

 

FSR

Includes FSR0, FSR1

TCLK

TCLK0, TCLK1

FSX

Includes FSX0, FSX1

(X)A

Includes A23 ± A0 and XA12 ± XA0

GPIO

General-purpose input/output; peripheral pins include

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLKX0/1, CLKR0/1, DX0/1, DR0/1, FSX0/1, FSR0/1,

(X)D

Includes D31 ± D0 and XD31 ± XD0

 

and TCLK0/1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H

Includes H1, H3

XF

XFx includes XF0 and XF1

H1

H1

XF0

XF0

H3

H3

XF1

XF1

HOLD

 

 

(X)RDY

Includes

 

and

 

 

 

 

 

 

HOLD

 

 

RDY

XRDY

 

 

 

HOLDA

 

 

(X)RW

 

 

 

 

 

 

 

HOLDA

 

(X)R/W

includes R/W

and XR/W

14

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