Fujitsu SK-91460T-144PMC-GPIO User Manual - Page 7

Browse online or download pdf User Manual for Motherboard Fujitsu SK-91460T-144PMC-GPIO. Fujitsu SK-91460T-144PMC-GPIO 47 pages. Mb91460 series

Print Page

SK-91460T-144PMC-GPIO User Guide

Chapter 1 Overview

1.3 General Description

The SK-91460T-144PMC-GPIO supports the 32-bit Flash microcontroller MB91F467TA.

It can be used as a stand-alone evaluation board or as a target board for the emulator

debugger.

The evaluation board supports the following package: FPT-144P-M08.

1.3.1 MCU Clocks

The board is supplied with a 4 MHz crystal as main oscillation source. Using the internal PLL

of the µC, internal clock rates up to 100 MHz can be achieved.

1.3.2 RS-232 and LIN

Four separate RS232 transceivers and four single-wire LIN-transceivers (TLE7259) are

available to connect four on-chip UARTs to 9-pin D-Sub connectors (X2-X5). The

transceivers generate the adequate RS232 levels for the receive (RXD) and transmit (TXD)

and LIN bus lines. In RS232 mode, either the DTR line or the RTS line can be selected with

jumpers (JP24, 50, 51, 89) to generate a system reset. The RTS signal can be shortcut to

CTS using the jumpers JP17, 20, 44 and 45. Each of the four D-Sub connectors can be

configured as RS232 or LIN. The LIN Vs line can be powered by the unregulated supply

input of the board, so no additional supply is needed (JP30, 31, 56 and 57).

All transceivers are fully 3.3V IO compatible to enable low voltage applications.

In-circuit programming (asynchronous) can be done via LIN-UART 4 (X2).

1.3.3 CAN Bus

Two high-speed CAN transceivers (TLE6250GV33) can be connected to the CAN interfaces

of the MCU to allow easy connection to CAN networks.

All transceivers are fully 3.3V IO compatible to enable low voltage applications.

1.3.4 MCU Pins / External Bus Interface Connector

All pins of the microcontroller except the oscillator pins X0/1(A) are connected to edge

connectors in functional groups and are directly available to the user.

1.3.5 Power Supply

The on-board switching mode voltage regulators allow the user to connect an unregulated

DC input voltage of +9V to +15V, and supplies all voltages needed by the board. The

regulators are rated with 3A (5V and 3.3V) and are thermally protected against overload.

1.3.6 User Buttons

There are six push button switches on the board, which can be connected to input ports of

the microcontroller. This allows the user to evaluate external Interrupts, external ADC trigger

or Input Capture functions as well as simple input polling. One button is reserved as 'Reset'-

button for the microcontroller, controlled by the supply monitor IC.

1.3.7 User LEDs and optional LCD

Eight user LEDs are connected to Port 15/16 and grounded by a 1k resistor network. If these

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

free the IO port.

- 7 -

FMEMCU-UG-910074-11