參數(shù)資料
型號: MC80C0224
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): 26/128頁
文件大小: 1408K
代理商: MC80C0224
MC80F0208/16/24
Preliminary
22
MAR. 2005 Ver 0.2
Figure 8-4 Stack Operation
8.2 Program Memory
A 16-bit program counter is capable of addressing up to 64K
bytes, but this device has 32/48K bytes program memory space
only physically implemented. Accessing a location above FFFF
H
will cause a wrap-around to 0000
H
.
Figure 8-5, shows a map of Program Memory. After reset, the
CPU begins execution from reset vector which is stored in ad-
dress FFFE
H
and FFFF
H
as shown in Figure 8-6.
As shown in Figure 8-5, each area is assigned a fixed location in
Program Memory. Program Memory area contains the user pro-
gram
At execution of
a CALL/TCALL/PCALL
PCL
PCH
01FC
SP after
execution
SP before
execution
01FD
01FD
01FE
01FF
01FF
Push
down
At acceptance
of interrupt
PCL
PSW
PCH
01FC
01FC
01FD
01FE
01FF
01FF
Push
down
At execution
of RET instruction
PCL
PCH
01FC
01FF
01FD
01FE
01FF
01FD
Pop
up
At execution
of RET instruction
PCL
PSW
PCH
01FC
01FF
01FD
01FE
01FF
01FC
Pop
up
0100H
01FFH
Stack
depth
At execution
of PUSH instruction
PUSH A (X,Y,PSW)
A
01FC
01FE
01FD
01FE
01FF
01FF
Push
down
SP after
execution
SP before
execution
At execution
of POP instruction
POP A (X,Y,PSW)
A
01FC
01FF
01FD
01FE
01FF
01FE
Pop
up
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