- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370366 > GMS81C1408 [General Purpose(2) : ADC/ LED/ SCI/ PWM] PDF資料下載
參數(shù)資料
| 型號： | GMS81C1408 |
| 英文描述： | [General Purpose(2) : ADC/ LED/ SCI/ PWM] |
| 中文描述： | [通用（2）：藝術發(fā)展局/發(fā)光/工商/脈寬調(diào)制] |
| 文件頁數(shù)： | 26/93頁 |
| 文件大小： | 853K |
| 代理商： | GMS81C1408 |
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頁第24頁第25頁當前第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頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁
GMS81C1404/GMS81C1408
24
June. 2001 Ver 1.2
9.2 Program Memory
A 16-bit program counter is capable of addressing up to
64K bytes, but these devices have 4K/8K bytes program
memory space only physically implemented. Accessing a
location above FFFF
H
will cause a wrap-around to 0000
H
.
Figure 9-4 , shows a map of Program Memory. After reset,
the CPU begins execution from reset vector which is stored
in address FFFE
H
and FFFF
H
as shown in Figure 9-5 .
As shown in Figure 9-4 , each area is assigned a fixed lo-
cation in Program Memory. Program Memory area con-
tains the user program.
Figure 9-4 Program Memory Map
Page Call (PCALL) area contains subroutine program to
reduce program byte length by using 2 bytes PCALL in-
stead of 3 bytes CALL instruction. If it is frequently called,
it is more useful to save program byte length.
Table Call (TCALL) causes the CPU to jump to each
TCALL address, where it commences the execution of the
service routine. The Table Call service area spaces 2-byte
for every TCALL: 0FFC0
H
for TCALL15, 0FFC2
H
for
TCALL14, etc., as shown in Figure 9-6 .
Example: Usage of TCALL
The interrupt causes the CPU to jump to specific location,
where it commences the execution of the service routine.
The External interrupt 0, for example, is assigned to loca-
tion 0FFFA
H
. The interrupt service locations spaces 2-byte
interval: 0FFF8
H
and 0FFF9
H
for External Interrupt 1,
0FFFA
H
and 0FFFB
H
for External Interrupt 0, etc.
As for the area from 0FF00
H
to 0FFFF
H
, if any area of
them is not going to be used, its service location is avail-
able as general purpose Program Memory.
Figure 9-5 Interrupt Vector Area
PROGRAM
MEMORY
TCALL
AREA
INTERRUPT
VECTOR AREA
E000H
FEFFH
FF00H
FFC0H
FFDFH
FFE0H
FFFFH
PCALL
AREA
F000H
GMS81C1404
GMS81C1408
LDA
#5
TCALL 0FH
:
:
;
1BYTE INSTRUCTION
;
INSTEAD OF 3 BYTES
;
NORMAL CALL
;
;TABLE CALL ROUTINE
;
FUNC_A: LDA
RET
;
FUNC_B: LDA
RET
;
;TABLE CALL ADD. AREA
;
ORG
DW
DW
LRG0
LRG1
0FFC0H
FUNC_A
FUNC_B
;
TCALL ADDRESS AREA
1
2
0FFE0
H
E2
E4
E6
E8
EA
EC
EE
F0
Address
Vector Area Memory
F2
F4
F6
F8
FA
FC
FE
-
-
Serial Peripheral Interface Interrupt Vector Area
Basic Interval Interrupt Vector Area
Watchdog Timer Interrupt Vector Area
A/D Converter Interrupt Vector Area
Timer/Counter 3 Interrupt Vector Area
Timer/Counter 2 Interrupt Vector Area
External Interrupt 3 Vector Area
External Interrupt 2 Vector Area
Timer/Counter 1 Interrupt Vector Area
Timer/Counter 0 Interrupt Vector Area
External Interrupt 1 Vector Area
External Interrupt 0 Vector Area
-
RESET Vector Area
“-” means reserved area.
NOTE:
相關PDF資料 |
PDF描述 |
|---|---|
| GMS81C5016-XXX | MICROCONTROLLER|8-BIT|CMOS|DIP|40PIN|PLASTIC |
| GMS81C5016-XXXD | MICROCONTROLLER|8-BIT|CMOS|SOP|28PIN|PLASTIC |
| GMS81C5016-XXXDT | MICROCONTROLLER|8-BIT|CMOS|SOP|28PIN|PLASTIC |
| GMS81C5016-XXXPL | MICROCONTROLLER|8-BIT|CMOS|LDCC|44PIN|PLASTIC |
| GMS81C5016-XXXPLT | MICROCONTROLLER|8-BIT|CMOS|LDCC|44PIN|PLASTIC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| GMS81C1408D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS81C1408ED | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS81C1408E-HG | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS81C1408E-HGXXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS81C1408ESK | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
發(fā)布緊急采購，3分鐘左右您將得到回復。