參數(shù)資料
型號(hào)： S1C60L16F0A0100
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 0.032768 MHz, MICROCONTROLLER, PQFP80
封裝： PLASTIC, QFP14-80
文件頁(yè)數(shù)： 82/105頁(yè)
文件大小： 841K
代理商： S1C60L16F0A0100
68
EPSON
S1C60N16 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Heavy Load Protection Function)
4.15 Heavy Load Protection Function (S1C60A16)
4.15.1 Outline of heavy load protection function
The S1C60A16 has the heavy load protection function for when the battery load becomes heavy and
the source voltage changes, such as when an external buzzer sounds or an external lamp lights. The
state where the heavy load protection function is in effect is called the heavy load protection mode.
Compared with the normal operation mode, this mode can reduce the output voltage variation of the
constant voltage.
The normal mode changes to the heavy load protection mode in the following case:
When the software changes the mode to the heavy load protection mode (HLMOD = "1")
The heavy load protection mode switches the voltage regulator circuit to the high-stability mode from
the low current consumption mode. Consequently, more current is consumed in the heavy load
protection mode than in the normal mode. Unless it is necessary, be careful not to set the heavy load
protection mode with the software.
Note: The S1C60N16 and S1C60L16 do not support the heavy load protection function.
4.15.2 Control of heavy load protection function
Table 4.15.2.1 shows the control bits and their addresses for the heavy load protection function.
Table 4.15.2.1 Control bits of heavy load protection function
Address
Comment
D3
D2
Register
D1
D0
Name
Init 1
10
2E6H
HLMOD
0
EISWIT1 EISWIT0
R/W
R
R/W
HLMOD
0 3
EISWIT1
EISWIT0
0
– 2
0
Heavy load
–
Enable
Normal
–
Mask
Heavy load protection mode register (S1C60A16)
Unused
Interrupt mask register (stopwatch 1 Hz)
Interrupt mask register (stopwatch 10 Hz)
1
2
Initial value at initial reset
Not set in the circuit
3
4
Always "0" being read
Reset (0) immediately after being read
5 Undefined
HLMOD: Heavy load protection mode (2E6HD3)
Sets the IC in heavy load protection mode.
When "1" is written : Heavy load protection mode is set
When "0" is written : Heavy load protection mode is released
Read-out : Valid
When HLMOD is set to "1", the IC enters the heavy load protection mode.
In the S1C60N16 and S1C60L16, HLMOD can be used as a general-purpose R/W register.
4.15.3 Programming notes
(1) More current is consumed in the heavy load protection mode than in the normal mode. Unless it is
necessary, be careful not to set the heavy load protection mode with the software.
(2) The heavy load protection function is available only in the S1C60A16.
The S1C60N16 and S1C60L16 do not support this function and HLMOD can be used as a general-
purpose R/W register that does not affect the IC's operations.
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