參數(shù)資料
型號(hào)： HT49C10
廠商： Holtek Semiconductor Inc.
元件分類(lèi)： 8位微控制器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8位微控制器
文件頁(yè)數(shù)： 34/47頁(yè)
文件大小： 329K
代理商： HT49C10
CPLA [m]
Complement data memory and place result in the accumulator
Description
Each bit of the specified data memory is logically complemented (1 s comple-
ment). Bits which previously contained a one are changed to zero 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)
TC2
TC1
TO
PD
OV
Z
AC
C
DAA [m]
Decimal-Adjust accumulator for addition
Description
The accumulator value is adjusted to the BCD (Binary Code Decimal) code.
The accumulator 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 ac-
cumulator is greater than 9. The BCD adjustment is done by adding 6 to the
originalvalueiftheoriginalvalueisgreaterthan9oracarry(ACorC)isset;
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
else [m].3~[m].0)
and
If ACC.7~ACC.4+AC1 >9 or C=1
then [m].7~[m].4
else [m].7~[m].4
(ACC.3~ACC.0)+6, AC1=AC
(ACC.3~ACC.0), AC1=0
ACC.7~ACC.4+6+AC1,C=1
ACC.7~ACC.4+AC1,C=C
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
DEC [m]
Decrement data memory
Description
Data in the specified data memory is decremented by one.
Operation
[m]
[m] 1
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
HT49C10
34
September 28, 1999
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參數(shù)描述
HT49C10(48SSOP) 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:8-Bit Microcontroller
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