LCE-780308-EM Renesas Electronics America, LCE-780308-EM Datasheet - Page 8

• Manufacturer Part Number: LCE-780308-EM
• Description: BOARD EMULATOR 78K0 UPD780308
• Manufacturer: Renesas Electronics America

Specifications of LCE-780308-EM

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LCE-780308-EM User’s Manual
This is a drawing of the top of the LCE-780308-EM board; this side will face upward in
the assembled system.
U1 is a uPD78P0308 device, and U2 is a uPD78P054 device. Together these two devices
provide emulation of the peripheral devices such as parallel ports, serial ports, timers,
LCD drivers, etc., for the supported 78K0 devices.
J1, J2, J3, J4, and J5 are connectors to the user target system. These connectors contain
all the pins available on the emulated device. J1 and J2 are KEL connectors for device
probes, while J3, J4 and J5 are dual-row male shrouded headers with latching levers for
the ribbon cables. Please see the section below about ribbon cables and probes, and
Chapter 4 for pin assignments of these connectors.
D7 is an LED which is used to indicate that power is applied to the target system.
JP1, JP2, JP3, and JP6 are jumpers for analog voltages. They allow the optional
connection of analog signals AVDD, AVREF0, AVREF1, and AVSS to power, ground
or reference voltages provided on the LCE-780308-EM board, when these analog
voltages are not provided in the user target system.
JP4 is provided for optional on-board connection of LCD display voltage divider
resistors. In normal operation, the voltage divider for LCD display voltages should be
located on the user target system, and JP4 should be left unconnected.
SW1 is a dip switch for enabling or disabling pull-up resistors on the P60-P63 input pins
to emulate mask options of the target device. These mask option pull-up resistors are
also switched in or not by software-controlled switches, under control of the ID78K0-
LCE debugger. In normal operation, the switches on SW1 should all be set to the OFF
position.
P1 is a connector for programming PLD logic on the LCE-780308-EM. It is used only
for factory programming, and should be left unconnected in normal operation.
P2 is a connector for an external trigger input to the LCE-K0 system.
P3 and P4 are the connectors for the motherboard. The motherboard connects on top of
the daughter board.
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