- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385388 > HMS77C1001A (Hynix Semiconductor Inc.) 8-BIT SINGLE-CHIP MICROCONTROLLERS PDF資料下載
參數(shù)資料
| 型號： | HMS77C1001A |
| 廠商： | Hynix Semiconductor Inc. |
| 元件分類： | 數(shù)學(xué)處理器 |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 8位單晶片微控制器 |
| 文件頁數(shù)： | 24/45頁 |
| 文件大小： | 549K |
| 代理商： | HMS77C1001A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當(dāng)前第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁
HMS77C1000A/HMS77C1001A
Oct. 2001 Ver. 2.0
21
program.
9.3.5 STATUS Register
This register contains the arithmetic status of the ALU, the
RESET status, and the page select bit for program memo-
ries larger than 512 words.
The STATUS register can be the destination for any in-
struction, as with any other register. If the STATUS regis-
ter is the destination for an instruction that affects the Z,
DC or C bits, then the write to these three bits is disabled.
These bits are set or cleared according to the device logic.
Furthermore, the TO and PD bits are not writable. There-
fore, the result of an instruction with the STATUS register
as destination may be different than intended.
It is recommended that only instructions that do not affect
status of CPU be used on STATUS register. Care should be
exercised when writing to the STATUS register as the
ALU status bits are updated upon completion of the write
operation, possibly leaving the STATUS register with a re-
sult that is different than intended. In reset state, the STA-
TUS register is initialized with “00011XXX
B
”.
FIGURE 9-7 OPERATION OF 2-LEVEL STACK
PC
STACK LEVEL1
STACK LEVEL2
0
9(8)
return
return
subroutine call
HMS77C1001A(HMS77C1000A)
subroutine call
FIGURE 9-8 STATUS REGISTER
-
PA0
R/W
TO
R
PD
R
Z
R/W
DC
R/W
C
R/W
bit7
bit0
PA0
: Program memory page select bits
0 = page 0 (000h - 1FFh) - HMS77C1000A/
1001A
1 = page 1 (200h - 3FFh) - HMS77C1001A
TO
: Time-overflow bit
1 = After power-up, watchdog clear instruction, or
entering power-down mode
0 = A watchdog timer time-overflow occurred
PD
: Power-down bit
1 = After power-up or by the watchdog clear
instruction
0 = By execution of power-down mode
Z
: Zero bit
1 = The result of an arithmetic or logic operation
is zero
0 = The result of an arithmetic or logic operation
is not zero
DC
: Digit carry/borrow bit
(for addition and subtraction)
addition
1 = A carry from the 4th low order bit of the result
occurred
0 = A carry from the 4th low order bit of the result
did not occur
subtraction
1 = A borrow from the 4th low order bit of the
result did not occur
0 = A borrow from the 4th low order bit of the
result occurred
C
: Carry/borrow bit
(for additon,subtraction and rotation)
addition
1 = A carry occurred
0 = A carry did not occur
subtraction
1 = A borrow did not occur
0 = A borrow occurred
rotation
Load bit with LSB or MSB, respectively
R = Readable bit
W = Writable bit
ADDRESS ; 03
H
RESET VALUE : 0001_1XXX
-
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HMS81020TL | HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS81032TL | HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS81004E | HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS81008E | HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS81016E | HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMS77C2000 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[General Purpose(2) : ADC/ LED/ SCI/ PWM] |
| HMS77C2001 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[General Purpose(2) : ADC/ LED/ SCI/ PWM] |
| HMS81004 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REMOTE CONTROLLER |
| HMS81004E | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS81008 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REMOTE CONTROLLER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。