參數(shù)資料
型號: HD40L4818
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計算機)
中文描述: 4位單片機(4位單片微計算機)
文件頁數(shù): 18/98頁
文件大小: 621K
代理商: HD40L4818
HD404818 Series
18
Table 1 Initial Values after MCU Reset (cont)
Items
Initial Value
Contents
LCD
LCD control register (LCR)
000
Refer to description of LCD Control
Register
LCD mode register (LMR)
0000
Refer to description of LCD Duty/Clock
Control
Bit register
Low speed on flag (LSON)
0
Refer to description of Low-Power
Dissipation Mode
Watchdog timer on flag
(WDON)
0
Refer to description of Timer C
Direct transfer on flag (DTON) 0
Refer to description of Low-Power
Dissipation Mode
Miscellaneous
register
(MIS)
000
Item
After MCU Reset to Recover from
Stop Mode
After MCU Reset to Recover from
Other Modes
Carry flag (CA)
The contents of the items before
MCU reset are not retained. It is
necessary to initialize them by
software.
The contents of the items before MCU
reset are not retained. It is necessary to
initialize them by software.
Accumulator (A)
B register (B)
W register (W)
X/SPX registers (X/SPX)
Y/SPY registers (Y/SPY)
Serial data register (SR)
RAM
The contents of RAM before MCU
reset (just before STOP instruction)
are retained.
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