Table of Contents
Advertisement
6. PRECAUTIONS
6. PRECAUTIONS
Take the following precautions when using the S5U1C62N51E1:
6.1 Precautions for Operation
• Be sure to use the Development Tool that supports the S5U1C62N51E1. Development Tools for the EVA6251,
6S37, 6001, 6002 and 6005 must never been used.
• Turn the power of all equipment off before connecting or disconnecting cables.
• To turn the POWER switch of the S5U1C62N51E1 off, then on again, wait for at least 10 seconds after turning
off before turning on.
• When ROMs are inserted into the ROM sockets, lock the lever securely by positioning it horizontally. After the
ROMs have been removed from the sockets, lock the lever at the same position above. If the lever is left
upright, poor contact may result.
• Confirm that the following ROMs have been installed correctly, then operate the S5U1C62N51E1.
(Top panel)
(Under top cover)
(Under top cover)
• When developing and debugging the program by connecting the S5U1C62N51E1 to the ICE, the
S5U1C62N51E1 reset switch and the target board cannot reset the CPU while the ICE is in monitor status. In
this case, reset the CPU by executing the "I" command from the ICE. In Run status, resetting by the
S5U1C62N51E1 or target board will be accepted.
6.2 Differences from Actual IC
There are some differences in functions between the S5U1C62N51E1 and the actual IC.
I/O
• The response time has been changed by the differences in logic level, output drive capability, and pull-down
resistance. The minimum operating voltage is also different from the actual IC.
• When the segment terminals are set to DC output, the output signals are delivered with 0 V and +5 V ±10%.
LCD
• The output drive capability is different.
• When the S5U1C62N51E1 is set for the S1C62N51, the LCD drive voltages are set at V
and V
= 3.0 V.
L3
When the S5U1C62N51E1 is set for the S1C6S3N7, 60N01, 60N02 or 60N05, the LCD drive voltages can be
selected from the following three types by function option:
1) V
= 1.0 V, V
L1
2) V
= 1.5 V, V
L1
3) V
= V
= 1.5 V, V
L1
L2
However, external voltage cannot be supplied from outside of the S5U1C62N51E1 even when "external power"
is selected for the LCD power supply. The S5U1C62N51E1 generates the LCD drive voltage inside and outputs
it to the LCD panel.
Oscillation circuit
• The type of OSC1 oscillation circuit can be set by function option as follows:
32.768 kHz crystal oscillation or 30 kHz to 90 kHz CR oscillation
The CR oscillation clock frequency can be adjusted using the OSC1 ADJ control mounted on the board.
10
Program ROM
Function option ROM
Segment option ROM
= 2.0 V, V
= 3.0 V
L2
L3
= 3.0 V, V
= 4.5 V
L2
L3
= 3.0 V
L3
2
L.HEX, H.HEX
1
F.HEX
1
S.HEX
EPSON
= 1.0 V, V
L1
S5U1C62N51E1 MANUAL (Rev.1.0)
= 2.0 V
L2
Advertisement
Table of Contents
