參數資料
型號: HT46C47
廠商: Holtek Semiconductor Inc.
英文描述: Cost-Effective A/D Type 8-Bit MCU
中文描述: 成本效益的A / D型8位微控制器
文件頁數: 28/42頁
文件大小: 291K
代理商: HT46C47
CPLA [m]
Complement data memory and place result in the accumulator
Description
Each bit of the specified data memory is logically complemented (1 s complement). Bits
which previously contained a 1 are changed to 0 and vice-versa. The complemented result
is stored in the accumulator and the contents of the data memory remain unchanged.
Operation
ACC
[m]
Affected flag(s)
TO
PDF
OV
Z
AC
C
DAA [m]
Decimal-Adjust accumulator for addition
Description
The accumulator value is adjusted to the BCD (Binary Coded Decimal) code. The accumu-
lator is divided into two nibbles. Each nibble is adjusted to the BCD code and an internal
carry (AC1) will be done if the low nibble of the accumulator is greater than 9. The BCD ad-
justment is done by adding 6 to the original value if the original value is greater than 9 or a
carry (AC or C) is set; otherwise the original value remains unchanged. The result is stored
in the data memory and only the carry flag (C) may be affected.
Operation
If ACC.3~ACC.0 >9 or AC=1
then [m].3~[m].0
(ACC.3~ACC.0)+6, AC1=AC
else [m].3~[m].0
and
If ACC.7~ACC.4+AC1 >9 or C=1
(ACC.3~ACC.0), AC1=0
then [m].7~[m].4
ACC.7~ACC.4+6+AC1,C=1
else [m].7~[m].4
ACC.7~ACC.4+AC1,C=C
Affected flag(s)
TO
PDF
OV
Z
AC
C
DEC [m]
Decrement data memory
Description
Data in the specified data memory is decremented by 1.
Operation
[m]
[m] 1
Affected flag(s)
TO
PDF
OV
Z
AC
C
DECA [m]
Decrement data memory and place result in the accumulator
Description
Data in the specified data memory is decremented by 1, leaving the result in the accumula-
tor. The contents of the data memory remain unchanged.
Operation
ACC
[m] 1
Affected flag(s)
TO
PDF
OV
Z
AC
C
HT46R46/HT46C46/HT46R47/HT46C47
Rev. 1.00
28
December 28, 2004
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PDF描述
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相關代理商/技術參數
參數描述
HT46C47E 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective A/D Type 8-Bit MCU
HT46C48A 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective A/D Type 8-Bit MCU
HT46C48AE 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective A/D Type 8-Bit MCU
HT46C62 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:A/D with LCD Type 8-Bit MCU
HT46C63 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:A/D with LCD Type 8-Bit MCU