參數(shù)資料
型號: MC68HC05K3CSDR2
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, PDSO20
封裝: SSOP-20
文件頁數(shù): 63/132頁
文件大?。?/td> 1188K
代理商: MC68HC05K3CSDR2
Technical Data
MC68HC05K3 — Revision 4.0
36
Central Processor Unit (CPU) Core
MOTOROLA
Central Processor Unit (CPU) Core
3.3 Registers
The MCU contains five registers that are hard-wired within the CPU and
are not part of the memory map. These five registers are shown in
Figure 3-1. M68HC05 Programming Model
For a more complete description of the M68HC05 CPU functions, refer
to:
M6805 HMOS, M146805 CMOS Family User’s Manual, Motorola
order number M6805UM(AD3)
HC05 Applications Guide, Motorola order number
M68HC05AG/AD
Understanding Small Microcontrollers, Motorola order number
M68HC05TB/D
Any specific differences in the operation of all CPU registers or bits is
described in the following sections.
CONDITION CODE REGISTER
I
60
A
71
X
4
52
3
STACK POINTER
SP
14
8
15
9
12
13
10
11
PC
CC
111
11
0
HN
Z
C
HALF-CARRY BIT (FROM BIT 3)
INTERRUPT MASK
NEGATIVE BIT
ZERO BIT
CARRY BIT
1
PROGRAM COUNTER
INDEX REGISTER
ACCUMULATOR
000000
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