參數(shù)資料
型號: MC68HC05K3CDWR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO16
封裝: SOIC-16
文件頁數(shù): 60/132頁
文件大?。?/td> 1188K
代理商: MC68HC05K3CDWR2
Memory Map
Random-Access Memory (RAM)
MC68HC05K3 — Revision 4.0
Technical Data
MOTOROLA
Memory Map
33
2.4 Random-Access Memory (RAM)
The total RAM consists of 64 bytes (including the stack) at locations
$00C0–$00FF. The stack pointer can access 32 locations from $00E0
to $00FF. The stack begins at address $00FF and proceeds down to
$00E0. 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.
2.5 Read-Only Memory (ROM)
There are a total of 928 bytes of user ROM on the chip. This includes
160 bytes in page zero from $0020–$00BF, 760 bytes of user ROM with
locations $0100–$03F7 for user program storage, and 8 bytes of user
vectors at locations $03F8–$03FF.
$001C
Unimplemented
Read:
Write:
$001D
Unimplemented
Read:
Write:
$001E
Unimplemented
Read:
Write:
$001F
Reserved
Read:
R
RRR
R
Write:
Addr.
Name
Bit 7
6
5
4
3
2
1
Bit 0
= Unimplemented
R
= Reserved
Figure 2-3. MC68HC05K3 I/O Registers (Sheet 4 of 4)
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