參數(shù)資料
型號: MC68HC05J1ACP
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20
封裝: PLASTIC, DIP-20
文件頁數(shù): 50/128頁
文件大小: 1650K
代理商: MC68HC05J1ACP
Technical Data
MC68HC05J1A — Rev. 3.0
Memory
Memory
2.4 Input/Output (I/O) Section
The first 32 addresses of the memory space, $0001–$001F, are the I/O
section. These are the addresses of the I/O control registers, status
registers, and data registers. See Figure 2-2.
One I/O register shown in Figure 2-2 is located outside the 32-byte I/O
section: the computer operating properly (COP) register is mapped at
$07F0.
2.5 Random-Access Memory (RAM)
The 64 addresses from $00C0 to $00FF serve as both the user RAM and
the stack RAM. The CPU uses five stack RAM bytes to save all CPU
register contents before processing an interrupt. During a subroutine
call, the CPU uses two bytes to store the return address. The stack
pointer decrements during pushes and increments during pulls.
NOTE:
Be careful when using nested subroutines or multiple interrupt levels.
The CPU may overwrite data in the RAM during a subroutine or during
the interrupt stacking operation.
2.6 Read-Only Memory (ROM)
The ROM is located in two areas of the memory map:
1. Addresses $0300–$07CF contain 1232 bytes of user ROM.
2. Addresses $07F8–$07FF contain 16 bytes of ROM reserved for
user vectors.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料
PDF描述
MC68HSC05J1ADW 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HC05J1AP 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20
MC68HCL05J1ADW 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HC05J3CP 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20
MC68HC05J3CDW 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05J1ADW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05J1AP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05J1AVDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05J1AVP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05J3 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit