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| 型號(hào)： | HMS77C1000A |
| 廠商： | Hynix Semiconductor Inc. |
| 元件分類(lèi)： | 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(yè)數(shù)： | 21/45頁(yè) |
| 文件大?。?/td> | 549K |
| 代理商： | HMS77C1000A |
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HMS77C1000A/HMS77C1001A
18
Oct. 2001 Ver. 2.0
9. MEMORY
The HMS77C100XA has separate memory maps for pro-
gram memory and data memory. Program memory can
only be read, not written to. It can be up to 1K words of
program memory. Data memory can be read and written to
32 bytes including special function registers.
9.1 Program Memory
The program memory is organized as 0.5K, 12-bit wide
words(HMS77C1000A) and 1K, 12-bit wide
words(HMS77C1001A). The program memory words are
addressed sequentially by a program counter. Increment-
ing at location 1FF
H
(HMS77C1000A) or 3FF
H
(HMS77C1001A) will cause a wrap around to 000
H
.
Figure 9-1 and Figure 9-2 show a map of program memo-
ry. After reset, CPU begins execution from reset vector
which is stored in address(1FF
H
: HMS77C1000A, 3FF
H
:
HMS77C1001A).
9.2 Data Memory
The data memory consists of 25 bytes of RAM and seven
special function registers. The data memory locations are
addressed directly or indirectly by using FSR.
Figure 9-3 shows a map of data memory. The special func-
tion registers are mapped into the data memory..
FIGURE 9-1 HMS77C1000A PROGRAM MEMORY MAP
AND STACK
PC<8:0>
Stack Level 1
Stack Level 2
Reset Vector
On-chip
Program
Memory
000
H
0FF
H
100
H
1FF
H
U
S
FIGURE 9-2 HMS77C1001A PROGRAM MEMORY MAP
AND STACK
FIGURE 9-3 HMS77C100XA DATA MEMORY MAP
PC<9:0>
Stack Level 1
Stack Level 2
Reset Vector
On-chip
Program
Memory
(Page 0)
000
H
0FF
H
100
H
3FF
H
U
S
On-chip
Program
Memory
(Page 1)
2FF
H
300
H
1FF
H
200
H
0F
H
10
H
1F
H
INDF
TMR0
PCL
STATUS
FSR
RA
RB
00
H
01
H
02
H
03
H
04
H
05
H
06
H
File Address
Special
Function
Registers
00
H
06
H
07
H
DATA
MEMORY
(SRAM)
DATA
MEMORY
(SRAM)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMS77C1001A | 制造商:HYNIX 制造商全稱(chēng):Hynix Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS77C2000 | 制造商:未知廠家 制造商全稱(chēng):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(chēng):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(chēng):未知廠家 功能描述:REMOTE CONTROLLER |
| HMS81004E | 制造商:HYNIX 制造商全稱(chēng):Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS |
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