AD14160/AD14160LBB-4 Просмотр технического описания (PDF) - Analog Devices

Номер в каталоге

Компоненты Описание

производитель

AD14160/AD14160LBB-4

Quad-SHARC DSP Multiprocessor

Analog Devices 

AD14160/AD14160L

TARGET BOARD CONNECTOR FOR EZ-ICE PROBE

The ADSP-2106x EZ-ICE Emulator uses the IEEE 1149.1

JTAG test access port of the ADSP-2106x to monitor and con-

trol the target board processor during emulation. The EZ-ICE

probe requires that the AD14160/AD14160L’s CLKIN (op-

The 14-pin, 2-row pin strip header is keyed at the Pin 3 location;

Pin 3 must be removed from the header. The pins must be

0.025 inch square and at least 0.20 inch in length. Pin spacing

should be 0.1 × 0.1 inches. Pin strip headers are available from

vendors such as 3M, McKenzie and Samtec.

tional), TMS, TCK, TRST, TDI, TDO, EMU and GND signals The BTMS, BTCK, BTRST and BTDI signals are provided so

be made accessible on the target system via a 14-pin connector that the test access port can also be used for board-level testing.

(a pin strip header) such as that shown in Figure 6. The EZ-

When the connector is not being used for emulation, place

ICE probe plugs directly onto this connector for chip-on-board jumpers between the Bxxx pins and the xxx pins as shown in

emulation. You must add this connector to your target board

Figure 6. If you are not going to use the test access port for

design if you intend to use the ADSP-2106x EZ-ICE. The

board testing, tie BTRST to GND and tie or pull up BTCK to

length of the traces between the connector and the AD14160/

AD14160L’s JTAG pins should be as short as possible.

VDD. The TRST pin must be asserted after power-up (through

BTRST on the connector) or held low for proper operation of

OBSOLETE GND

KEY (NO PIN)

BTMS

BTCK

BTRST

BTDI

1

3

5

7

9

9

11

13

GND

2

EMU

4

CLKIN (OPTIONAL)

6

TMS

8

TCK

10

TRST

12

TDI

14

TDO

TOP VIEW

the AD14160/AD14160L. None of the Bxxx pins (Pins 5, 7, 9,

11) are connected on the EZ-ICE probe.

The JTAG signals are terminated on the EZ-ICE probe as follows:

Signal Termination

TMS

TCK

TRST

TDI

TDO

CLKIN

EMU

Driven through 22 Ω Resistor (16 mA/3.2 mA Driver)

Driven at 10 MHz through 22 Ω Resistor (16 mA/

3.2 mA Driver)

Driven by Open-Drain Driver* (Pulled Up by On-Chip

20 kΩ Resistor)

Driven by 16 mA/3.2 mA Driver

One TTL Load, No Termination

One TTL Load, No Termination (Optional Signal)

4.7 kΩ Pull-Up Resistor, One TTL Load (Open-Drain

Output from ADSP-2106x)

*TRST is driven low until the EZ-ICE probe is turned on by the EZ-ICE

software (after the invocation command).

Figure 6. Target Board Connector for ADSP-2106x EZ-ICE

Emulator (Jumpers in Place)

Figure 7 shows JTAG scan path connections for the multi-

processor system.

OTHER

JTAG

CONTROLLER

SHARC_A

TDI

TDI

EZ-ICE

JTAG

CONNECTOR

TDO

TCK

TMS

EMU

TRST

TDO

CLKIN

OPTIONAL

SHARC_B

TDI

TDO

SHARC_C

TDI

TDO

SHARC_D

TDI

TDO

JTAG DEVICE

(OPTIONAL)

TDI

TDO

Figure 7. JTAG Scan Path Connections for the AD14160/AD14160L

ADSP-2106x

#n

TDI

TDO

–12–

REV. A

Share Link: