Fujitsu SK-91467R-176PMC Посібник користувача - Сторінка 9

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1.3.7 User LEDs

Eight user LEDs are connected to Port 28 and grounded by a 220R resistor network. If these

LEDs are not required, the resistor network can be removed to disconnect the LEDs and to

free the IO port.

1.3.8 Onboard Memories

4 MB Flash ROM, 2 MB SRAM and 8 MB SDRAM are connected to external bus chip select

areas 0 (Flash),1 (SRAM) and 2 (SDRAM). SRAM and SDRAM can be accessed 16 bit

wide. Flash can be accessed 8 bit or 16 bit wide (JP40, JP42).

1.3.9 I2C Bus

Additional pull-up resistors can be connected to the I²C bus lines by setting the according

Jumpers (JP20, 21, 22, 23, 24, 25) for I²C 0/1.

1.3.10 Emulator System

If the board is used as an emulator target board, the microcontroller must be removed from

the socket and the corresponding probe cable has to be mounted:

Series

V-Chip

MB91460R

MB91V460

Socket for Flash chip mounting and probe cable connection is very sensitive. Always fit

probe cable or socket cover very carefully. If any unexpected problems occur, please check

proper connection of MCU/probe cable pads to socket.

Note:

Some customers experience connectivity problems when connecting the MCU into

the socket adapter. Only the small red screwdriver available in your box should be

used to connect the cover (HQPACK) onto the socket (NQPACK).

If the four screws are not tightening equally, then it may cause a poor contact.

Do not screw the cover too tight (max 0.054 Nm). If you have connectivity problems

then please loosen the screws and tighten again the screws equally.

Do not clean NQPACK, YQPACK, and YQSOCKET with steam. Cleaning material will

contaminate inside of connector.

SK-91467R-176PMC User Guide

Chapter 1 Overview

Probe cable

EMA-MB91F467R-NLS-176M07

Table 1-1: Emulation System

Attention:

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Socket

NQPACK176SD

HQPACK176SD

FMEMCU-UG-910053-16