S1C6S3N2 TECHNICAL HARDWARE
EPSON
I-97
CHAPTER 5: SUMMARY OF NOTES
SUMMARY OF NOTES
Notes for Low Current Consumption
The S1C6S3N2 Series contains control registers for each of
the circuits so that current consumption can be lowered.
These control registers lower the current consumption
through programs that operate the circuits at the minimum
levels.
The following text explains the circuits that can control
operation and their control registers. Refer to these when
putting programs together.
Table 5.1.1 Circuits and control registers
CHAPTER 5
5.1
Below are the circuit statuses at initial reset.
CPU:
Operating status
CPU operating frequency:
Low speed side (CLKCHG = "0"),
OSC3 oscillation circuit stop
status (OSCC = "0")
Heavy load protection mode: Normal operating mode
(HLMOD = "0")
SVD circuit:
OFF status (HLMOD = "0", BLS = "0")
Analog comparator:
OFF status (AMPON = "0")
Also, be careful about panel selection because the current
consumption can differ by the order of several µA on ac-
count of the LCD panel characteristics.
Circuits (and Items)
CPU
CPU operation frequency
(S1C6S3A2)
Heavy load protection mode
SVD circuit
Analog comparator
Control Registers
HALT instruction
CLKCHG, OSCC
HLMOD
HLMOD, BLS
AMPON
Order of Consumed Current
See electrical characteristics (Chapter 7)
See electrical characteristics (Chapter 7)
See electrical characteristics (Chapter 7)
Severral tens
µ
A
Severral tens
µ
A
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