ADDS-2111-EZ-KIT Просмотр технического описания (PDF) - Analog Devices

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ADDS-2111-EZ-KIT

ADSP-2100 Family Development Tools

Analog Devices 

ADDS-21xx-TOOLS

GUI Interface

EZ-ICE software uses a Graphical User Interface (GUI) to

increase development productivity by making your data easier to

view and manipulate—without switching between screens—

when debugging. In addition, you can obtain on-line help for

the currently selected window. The GUI user interface design is

the same one used with the ADSP-2100 Family Simulator

software, making both tools easier to use.

Clock Speed

EZ-ICE runs at full speed. There is no degradation of

processor performance other than BR, BG, and RESET, which

are slightly delayed. A jumper is used to select either the target

system clock or the EZ-ICE clock. The oscillator socket lets you

use other oscillator devices to achieve different clock speeds.

Memory

The ADSP-2101, ADSP-2111, and ADSP-2171 EZ-ICE each

have 8K × 24-bit overlay program memory and 16K × 16-bit

overlay data memory. You can either run programs from target

system memory, emulator overlay memory, or from a combination

of both. The overlay memory option is jumper-selectable.

Additional Equipment Required

EZ-ICE requires a +5 V dc power supply capable of supplying

1 A of current.

3-Volt Emulation

The 3-Volt Emulation Converter Board may be used with the

ADSP-2101 EZ-ICE to enable emulation of ADSP-2103 (3 V)

systems.

SURFACE MOUNT ADAPTORS

ADSP-2101/ADSP-2105/ADSP-2115

Several surface mount adaptors are available for emulation of

the ADSP-2101. For example: for the 68-pin PLCC package of

the ADSP-2101 and ADSP-2105, a PGA-to-PLCC adaptor is

available from the vendors listed at the end of this data sheet.

For the 80-pin PQFP package of the ADSP-2101, a 68-pin

PGA to 80-pin PQFP adaptor is also available.

The ADDS-2101-PGA/PQFP, a surface-mountable PGA-to-

PQFP adaptor, provides a footprint that exactly matches the 80-

pin package. This solution does not require extra space around

the adaptor or an extra through hole to the PQFP package to let

you use the same PCB in production. The PGA-to-PQFP

adaptor is surface mounted in the usual manner, and the PGA

connector of the ADSP-2101 EZ-ICE or ICE can be directly

plugged in.

ADSP-2111

The ADDS-2100-PGA/PQFP, a surface-mountable 101-pin

PGA to 100-pin PQFP adaptor, matches the ADSP-2111

package footprints. This solution does not require extra space

around the adaptor, and you can use the same PCB in

production. The PGA-to-PQFP adaptor is surface mounted in

the usual manner, and the PGA connector of the ADSP-2111

EZ-ICE can be directly plugged in.

ADSP-2171

The ADSP-2171 EZ-ICE Emulator is designed for compatibil-

ity with the surface mountable 128-pin PQFP package using an

adaptor card which plugs onto the ADDS-21xx EZ-ICE board

and then snaps onto the PQFP chip. This is illustrated in Figure

3. Extra space should be allowed around the PQFP chip to

allow clearance for the adaptor.

An alternate approach is required for the TQFP chip package.

Because of the extremely low profile of the surface mount

TQFP package, it is not practical to use a snap-on adaptor or

probe. Thus, in order to use the EZ-ICE, it is necessary to

provide a pair of header connectors on the target board that the

ADDS-21xx EZ-ICE board can plug directly onto. Extra space

around the adaptor and extra through-holes to the PQFP

package are not required to let you use the same PCB in

production. Dimensional requirements for placing the headers

is also shown in Figure 2.

ADSP-2181

There is no need for a surface mount adaptor for the ADSP-

2181 EZ-ICE. Instead, the ICE-Port Emulator Interface allows

for a simple 14-pin connector interface between the target board

and the EZ-ICE.

DESIGNING AN EZ-ICE COMPATIBLE TARGET

SYSTEM FOR THE ADSP-2181 AND THE ADSP-2171

ADSP-2181 Target System Requirements

The ADSP-2181 has on-chip emulation support and a special

set of pins that interface to the EZ-ICE called the ICE-Port.

The ICE-Port allows in-circuit emulation without replacing the

target system’s processor or overriding it with a probe, requiring

only a simple 14-pin header connector to interface to the EZ-

ICE (see Figure 3).

Table IV lists the pins and functions used in the ADSP-2181’s

ICE-Port emulation interface.

Table IV. ADSP-2181 ICE-Port Emulation Interface

Pin

Description

BR

Bus Request

BG

Bus Grant

RESET

Reset

GND

Ground

EBR

Emulator Bus Request (emulator-only*)

EBG

Emulator Bus Grant (emulator-only*)

ERESET

Emulator Reset (emulator-only*)

EMS

Emulator Memory Space (emulator-only*)

EINT

Emulator Interrupt Request (emulator-only*)

ECLK

Emulator Clock (emulator-only*)

ELIN

Emulator Data In (emulator-only*)

ELOUT

Emulator Data Out (emulator-only*)

EE

Emulator Enable (emulator-only*)

NOTE

*These ADSP-2181 pins must be connected only to the ICE-Port connector in

the target system. These pins have no function except during emulation. Keep

all traces as short as possible; no longer than 3 inches.

REV. B

–11–

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