On Board Memory; Mcu Clocks; Mcu Operating Mode; External Bus Interface Connectors - Fujitsu SK-91F467D-208PFV User Manual

SK-91F467D-208PFV V1.1
Introduction

1.3.1 On Board Memory

SK-91F467D-208PFV: The Starterkit SK-91F467D-208PFV includes 32 MBit (4 MByte)
SRAM memory and 128 Mbit (16 MByte) Flash memory on board. The Flash can be used
with 3.3 V external bus supply voltage only (JP21: 2-3).

1.3.2 MCU Clocks

The board is supplied with a 4MHz crystal as the main oscillation clock for the MCU. Using
the internal PLL of the MCU, internal clock rates up to 100MHz can be achieved. The MCU
sub clock is connected to a 32.768kHz crystal.

1.3.3 MCU Operating Mode

The operating mode of the microcontroller can be selected with the Dip-switch S5.

1.3.4 External Bus interface Connectors

Via DIN 41612 VG96ABC and VG48ABC connectors (external bus interface of the MCU), it
is possible to connect other devices e.g. user applications or Fujitsu graphic device sub
boards.

1.3.5 CAN Bus

Three high-speed CAN-transceivers (PCA82C250) are available to connect all available on-
chip CAN-controllers to 9-pin D-Sub connectors (X9, X10 and X11). The transceivers
provides differential transmit and receive capability between CAN-controller and CAN-bus.

1.3.6 RS-232 and LIN

Three separate RS-232 transceivers and three separate LIN transceivers are available to
connect the on-chip USARTs to the 9-pin D-Sub connectors.
The RS-232 transceivers generate the adequate RS-232 levels for receive (RXD) and
transmit (TXD) lines. The RTS signal can be shortcut to CTS using jumpers (some PC
software needs this connection).
Either the DTR line or the RTS line of X1, X4 or X8 connectors can be selected to generate
a system reset.
The LIN transceivers (TLE6259) generate the adequate levels to drive the bus line in LIN-
systems for automotive and industrial applications.

1.3.7 MCU Pins

All 208 pins of the microcontroller are connected to the edge connectors J1, J2, J3 and J4
and are directly available to the user.

1.3.8 User Buttons

There are four push buttons on board, which can be connected to input-ports of the
microcontroller. Some ports may support additional functions like external interrupts (INT0,
INT1 and INT2) and trigger for the Reload Timer or Input-Capture (TIN0 / ICU0). One
additional button is reserved as System-Reset-button to reset the MCU, but it is possible to
disconnect the RST-port with JP54.
It is possible to connect with Dip-switch S3 eight port input switches at S4 to the MCU port
P26. All eight ports can be switched separately to use e.g. only four ports as input.
FMEMCU-UG-910014-10 - 10 - © Fujitsu Microelectronics Europe GmbH