參數(shù)資料
型號: HD404459
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer(4位單片微計算機(jī))
中文描述: 4位HMCS400系列微機(jī)(4位單片微計算機(jī))
文件頁數(shù): 16/120頁
文件大?。?/td> 692K
代理商: HD404459
HD404459 Series
16
Item
Abbr.
Initial
Value
Contents
Timers/
counters,
serial
interface
Prescaler S
(PSS)
$000
Prescaler W
(PSW)
$00
Timer counter A
(TCA)
$00
Timer counter B
(TCB)
$00
Timer counter C
(TCC)
$00
Timer counter D
(TCD)
$00
Timer write register B
(TWBU,
TWBL)
$X0
Timer write register C
(TWCU,
TWCL)
$X0
Timer write register D
(TWDU,
TWDL)
$X0
Octal counter
000
I/O
Wakeup set register
(WSR)
0000
Voltage
comparator
Comparator enable
register
(CER)
0000
Comparator control
register
(CCR)
0000
Bit register Low speed on flag
(LSON)
0
Refer to description of operating modes
Watchdog timer on flag
(WDON) 0
Refer to description of timer C
Comparator start flag
(CMSF)
0
Refer to description of voltage comparator
Direct transfer on flag
(DTON)
0
Refer to description of operating modes
Input capture status flag
(ICSF)
0
Refer to description of timer D
Input capture error flag
(ICEF)
0
Refer to description of timer D
Others
Miscellaneous register
(MIS)
0000
Refer to description of operating modes, and
oscillator circuit
System clock select
register 1 bits 2, 1
(SSR12–
SSR11)
00
Refer to description of operating modes, and
oscillator circuit
System clock select
register 2
(SSR2)
- - 00
Switches OSC division ratio
Notes: 1. The statuses of other registers and flags after MCU reset are shown in the following table.
2. X indicates invalid value. - indicates that the bit does not exist.
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