參數(shù)資料
型號: MC68HC05P18AMP
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, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 57/130頁
文件大?。?/td> 1310K
代理商: MC68HC05P18AMP
NON-DISCLOSURE
AGREEMENT
REQUIRED
Memory Map
Technical Data
MC68HC05P18A
Memory Map
2.5 RAM
The user RAM consists of 192 bytes (including the stack) at locations
$0050–$010F. The stack begins at address $00FF. The stack pointer
can access 64 bytes of RAM from $00FF to $00C0.
NOTE:
Using the stack area for data storage or temporary work locations
requires care to prevent it from being overwritten due to stacking from an
interrupt or subroutine call.
2.6 ROM
There are 8064 bytes of user ROM available, consisting of:
8000 bytes at locations $1FC0–$3EFF
48 bytes in page zero locations $0020–$004F
16 additional bytes for user vectors at locations $3FF0–$3FFF
NOTE:
Address space $3F00–$3FEF is reserved for test code. Unlike other
M68HC05 devices, the MC68HC05P18A does not contain self-check
code.
$001E
A/D Converter Status and
Control Register (ADSCR)
Read:
CC
R
ADON
00
CH2
CH1
CH0
Write:
Reset:
0
$001F
Reserved
R
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
= Unimplemented
R
= Reserved
U = Unaffected
Figure 2-3. I/O and Control Registers (Sheet 4 of 4)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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