S5U1C62N51E1 MANUAL (Rev.1.0)
EPSON
5
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LEDs
•
POWER
This LED lights when the S5U1C62N51E1 turns on.
•
HLT/SLP
This LED lights when the CPU enters HALT or SLEEP status. (The S5U1C62N51E1 does not support SLEEP
mode.)
•
AD0
This LED indicates the status of the address 0 (AD0) signal. It can be used to check whether or not the
S5U1C62N51E1 works.
• SHEXLD
This LED lights when segment option data from a personal computer is loaded using the in-circuit emulator ICE. As
result, it can differentiate whether the currently specified segment option is due to the ROM (S.HEX) or has been
loaded from a personal computer. Refer to the development tool manual for the S1C62N51, 6S3N7, 60N01, 60N02
or 60N05 in regard to the loading of the segment option using the ICE.
Note: Be sure to use S.HEX created by the segment option generator compatible with the S5U1C62N51E1. Data
created by the old segment option generator cannot be used.
• LFHX
This LED lights when function option data from a personal computer is loaded using the in-circuit emulator
ICE. As result, it can differentiate whether the currently specified function option is due to the ROM (F.HEX) or
has been loaded from a personal computer. Refer to the development tool manual for the S1C62N51, 6S3N7,
60N01, 60N02 or 60N05 in regard to the loading of the function option using the ICE.
Note: Be sure to use F.HEX created by the function option generator compatible with the S5U1C62N51E1. Data
created by the old function option generator cannot be used.
• CSDC, SWRUN
These LEDs indicate the values ("1" or "0") of the following registers. LED lights when "1" is set in the register,
and it goes off when "0" is set in the register.
CSDC
CSDC register
(address 0FBH•D3)
SWRUN
SWRUN register
(address 0F9H•D1)
(Available only when S5U1C62N51E1 is set for the S1C6S3N7.)
• OSC1XT
This LED lights when the OSC1 oscillation circuit is set to crystal oscillation by function option.
• OSC1CR
This LED lights when the OSC1 oscillation circuit is set to CR oscillation by function option.
• HVLD, SVDON
These LEDs indicate the values ("1" or "0") of the following registers. LED lights when "1" is set in the register,
and it goes off when "0" is set in the register.
HVLD
HLMOD register (address 0FAH•D3)
SVDON
SVDON register
(address 0FAH•D0)
In the actual IC, power saving needs to stop the HVLD and SVD functions when they are unnecessary.
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Test pins
• RS, TH1, TH2, CS pins (sockets)
These pins (or the socket) are used to connect external parts, such as resistors, thermistors and capacitors, when using
the R/F converter (available only when S5U1C62N51E1 is set for the S1C62N51, 60N02 or 60N05).
When using the connecting pins, pay attention to the stray capacitance of the connecting cable and noise. When
using the socket, insert the parts in the correct position (TH1: between pins 1 and 16, TH2: between pins 3 and
14, RS: between pins 5 and 12, CS: between pins 7 and 10).
The connecting pins and socket pins have approximatelys 10 pF stray capacitance. Furthermore, the measure-
ment results may differ from those of the actual IC because the characteristics of the parts used for R/F conver-
sion are different. In particular, pay attention when the software uses an MSB or LSB area in the measurement
counter.
3. NAMES AND FUNCTIONS OF PARTS
