參數(shù)資料
型號: MC68HC05RC17DW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.097 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 53/128頁
文件大?。?/td> 561K
代理商: MC68HC05RC17DW
NON-DISCLOSURE
AGREEMENT
REQUIRED
Memory
General Release Specification
MC68HC05RC17 Rev. 2.0
30
Memory
MOTOROLA
2.3.1 ROM
The user ROM consists of 15,920 bytes of ROM located from $0180 to
$3FAF and 16 bytes of user vectors located from $3FF0 to $3FFF.
The burn-in ROM is located from $3FB0 to $3FEF.
Ten of the user vectors, $3FF6 through $3FFF, are dedicated to reset
and interrupt vectors. The six remaining locations — $3FF0, $3FF1,
$3FF2, $3FF3, $3FF4, and $3FF5 — are general-purpose user ROM
locations.
2.3.2 ROM Security
Security has been incorporated into the MC68HC05RC17 to prevent
external viewing of the ROM contents. This feature helps ensure that
customer-developed software remains proprietary.1
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the ROM difficult for unauthorized users.
$18
Reserved
R
$19
Reserved
R
$1A
Reserved
R
$1B
Reserved
R
$1C
Reserved
R
$1D
Reserved
R
$1E
Reserved
R
$1F
Reserved
R
= Reserved
Addr
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
Figure 2-2. I/O Registers (Sheet 2 of 2)
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