參數(shù)資料
型號: MC80F0216
廠商: Electronic Theatre Controls, Inc.
元件分類: 8位微控制器
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): 27/128頁
文件大?。?/td> 1408K
代理商: MC80F0216
Preliminary
MC80F0208/16/24
MAR. 2005 Ver 0.2
23
.
Figure 8-5 Program Memory Map
Page Call (PCALL) area contains subroutine program to reduce
program byte length by using 2 bytes PCALL instead 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 ad-
dress, 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 8-7.
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 location 0FFFC
H
. The in-
terrupt service locations spaces 2-byte interval: 0FFFA
H
and
0FFFB
H
for External Interrupt 1, 0FFFC
H
and 0FFFD
H
for Ex-
ternal Interrupt 0, etc.
Any area from 0FF00
H
to 0FFFF
H
, if it is not going to be used,
its service location is available as general purpose Program Mem-
ory.
Figure 8-6 Interrupt Vector Area
Interrupt
Vector Area
C000
H
FEFF
H
FF00
H
FFC0
H
FFDF
H
FFE0
H
FFFF
H
P
E000
H
A000
H
TCALL area
M
M
M
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
Address
Vector Area Memory
E4
E6
E8
EA
EC
EE
F0
F2
F4
F6
F8
FA
FC
FE
Basic Interval Timer
Watch / Watchdog Timer Interrupt
A/D Converter
Timer/Counter 4 Interrupt
External Interrupt 3
Serial Input/Output (SIO)
External Interrupt 1
External Interrupt 0
RESET
External Interrupt 2
Timer/Counter 3 Interrupt
Timer/Counter 0 Interrupt
UART0 Rx/Tx interrupt
UART1 Rx/Tx interrupt
Timer/Counter 1 Interrupt
Timer/Counter 2 Interrupt
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