參數(shù)資料
型號: MC68HC05P18A
廠商: Motorola, Inc.
英文描述: Low Cost HCMOS Microcontroller(低成本、8位HCMOS微控制器)
中文描述: 低成本HCMOS微控制器(低成本,8位HCMOS微控制器)
文件頁數(shù): 32/130頁
文件大小: 1200K
代理商: MC68HC05P18A
L
G
R
Memory Map
Technical Data
MC68HC05P18A
32
Memory Map
MOTOROLA
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)
See page 94.
Read:
CC
R
ADON
0
0
CH2
CH1
CH0
Write:
Reset:
0
0
0
0
0
0
0
0
$001F
Reserved
R
R
R
R
R
R
R
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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