參數(shù)資料
型號(hào)： S1C60N09D
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 0.08 MHz, MICROCONTROLLER, UUC70
封裝： DIE-70
文件頁(yè)數(shù)： 39/62頁(yè)
文件大?。?/td> 476K
代理商： S1C60N09D
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Heavy Load Protection Circuit)
38
EPSON
S1C60N09 TECHNICAL MANUAL
4.9 Heavy Load Protection Circuit
4.9.1 Heavy load protection function
The S1C60N09 Series has a 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.
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")
In the heavy load protection mode, the internal voltage regulator is switched 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.
4.9.2 I/O memory of heavy load protection circuit
Table 4.9.2.1 shows the heavy load protection circuit control bit and the address.
Table 4.9.2.1 Control bit of heavy load protection circuit
Address
Comment
D3
D2
Register
D1
D0
Name
Init 1
10
076H
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
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
HLMOD: Heavy load protection mode control (076HD3)
Controls the heavy load protection mode.
When "1" is written: Heavy load protection mode on
When "0" is written: Heavy load protection mode off
Reading: Valid
When HLMOD is set to "1", the IC enters the heavy load protection mode.
In the heavy load protection mode, the consumed current becomes larger. Unless necessary, do not select
the heavy load protection mode with the software.
After an initial reset, this register is set to "0".
4.9.3 Programming note
In the heavy load protection mode, the consumed current becomes larger. Unless necessary, do not select
the heavy load protection mode with the software.
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