Specifications

Table Of Contents
I-102 EPSON S1C62740 TECHNICAL HARDWARE
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (General-purpose Operation Amplifier)
Table 4.13.1 lists the analog comparator control bits and their
addresses.
Control of AMP
circuit
Table 4.13.1 Control bits of AMP circuit
*1 Initial value at the time of initial reset *5 Constantly "0" when being read
*2 Not set in the circuit *6 Refer to main manual
*3 Undefined *7 Page switching in I/O memory is not necessary
*4 Reset (0) immediately after being read
AMPON0, AMPON1:
AMP circuit ON/OFF
(F1H•D0, D1)
Switches the AMP circuit ON and OFF.
When "1" is written: The AMP circuit goes ON
When "0" is written: The AMP circuit goes OFF
Reading: Valid
The AMP0 (AMP1) circuit goes ON when "1" is written to AMPON0
(AMPON1), and OFF when "0" is written.
At initial reset, these registers are set to "0".
AMPDT0, AMPDT1:
AMP data
(F2H•D0, D1)
Reads out the output from the AMP circuit.
When "1" is read: High
When "0" is read: Low
Writing: Invalid
AMPDT0 (AMPDT1) is "1" when the output level of AMP0 (AMP1)
circuit is high, and "0" when the output level is low.
At initial reset, AMPDT0 and AMPDT1 are set to "0".
Programming notes
(1) To reduce current consumption, set the AMP circuit to OFF
when it is not necessary.
(2) After setting AMP circuit turns ON, wait at least 3 msec for the
operation of the AMP circuit to stabilize before using the output
of the AMP circuit.
Address
Comment
Register
D3 D2 D1 D0 Name Init 1 0
*1
F1H
AMPON0
R/W
0
0
AMPON1
AMPON0
0
0
On
On
On
On
AMPON100
*2
*2
*5
*5
F2H
AMPDT0
0
0
AMPDT1
AMPDT0
High
High
Low
Low
AMPDT100
0
0
*2
*2
*5
*5
*7
Unused
Unused
AMP1 On/Off
AMP0 On/Off
Unused
Unused
AMP1 output data
AMP0 output data
R
R