參數(shù)資料
型號: HCD404082
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的A / D轉(zhuǎn)換器(帶片上的A / D轉(zhuǎn)換器的低壓微計算機(jī))
文件頁數(shù): 33/162頁
文件大?。?/td> 482K
代理商: HCD404082
HD404374/HD404384/HD404389/HD404082/HD404084 Series
33
Table 1 (1) Initial Values after MCU Reset
Item
Abbr.
Initial
value
Contents
Program counter
(PC)
$0000
Program executed from ROM start address
Status flag
(ST)
1
Branching by conditional branch instruction enabled
Stack pointer
(SP)
$3FF
Stack level is 0
Interrupt
Interrupt enable flag
(IE)
0
All interrupts disabled
flags/ mask Interrupt request flag
(IF)
0
No interrupt requests
Interrupt mask
(IM)
1
Interrupt requests masked
I/O
Port data register
(PDR)
All bits 1 "1" level output possible
Data control registers
(DCD0 ~ 2)
All bits 0 Output buffer off (high impedance)
Data control registers
(DCR0
0
,
DCR1
0
,
DCR1
3
,
DCR2
0
DCR2
2
,
DCR7
0
DCR7
3
)
All bits 0
Port mode register 0
(PMR0)
---0
See port mode register 0 section
Port mode register 1
(PMR1)
---0
See port mode register 1 section
Port mode register 2
(PMR2)
0--0
See port mode register 2 section
Port mode register 3
(PMR3)
0000
See port mode register 3 section
Timers
Timer mode register A
(TMA)
0000
See timer mode register A section
Timer mode register B1
(TMB1)
0000
See timer mode register B1 section
Timer mode register B2
(TMB2)
-000
See timer mode register B2 section
Timer mode register C1
(TMC1)
0000
See timer mode register C1 section
Timer mode register C2
(TMC2)
-0--
See timer mode register C2 section
Prescaler S
(PSS)
$000
Prescaler W
(PSW)
$00
Timer/counter A
(TCA)
$00
Timer/counter B
(TCB)
$00
Timer/counter C
(TCC)
$00
Timer write register B
(TWBU,L)
$X0
Timer write register C
(TWCU,L)
$X0
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