參數(shù)資料
型號： MC9RS08KA1CSCR
廠商： Freescale Semiconductor
文件頁數(shù)： 91/136頁
文件大小： 0K
描述： IC MCU 8-BIT 1K FLASH 8-SOIC
產(chǎn)品培訓(xùn)模塊： Mechatronics
USBSpyder08 Discovery Kit
RS08KA2 Low-End Microcontroller Series
MC9RS08KA8 Microcontroller
標(biāo)準(zhǔn)包裝： 1
系列： RS08
核心處理器： RS08
芯體尺寸： 8-位
速度： 10MHz
外圍設(shè)備： LVD，POR，WDT
輸入/輸出數(shù)： 4
程序存儲(chǔ)器容量： 1KB（1K x 8）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 63 x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 5.5 V
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
包裝： 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面： 726 (CN2011-ZH PDF)
其它名稱： MC9RS08KA1CSCRDKR
Chapter 8 Central Processor Unit (RS08CPUV1)
MC9RS08KA2 Series Data Sheet, Rev. 4
58
Freescale Semiconductor
Figure 8-1. CPU Registers
In addition to the CPU registers, there are three memory mapped registers that are tightly coupled with the
core address generation during data read and write operations. They are the indexed data register (D[X]),
the index register (X), and the page select register (PAGESEL). These registers are located at $000E,
$000F, and $001F, respectively.
Figure 8-2. Memory Mapped Registers
8.2.1
Accumulator (A)
This general-purpose 8-bit register is the primary data register for RS08 MCUs. Data can be read from
memory into A with a load accumulator (LDA) instruction. The data in A can be written into memory with
a store accumulator (STA) instruction. Various addressing mode variations allow a great deal of flexibility
in specifying the memory location involved in a load or store instruction. Exchange instructions allow
values to be exchanged between A and SPC high (SHA) and also between A and SPC low (SLA).
Arithmetic, shift, and logical operations can be performed on the value in A as in ADD, SUB, RORA,
INCA, DECA, AND, ORA, EOR, etc. In some of these instructions, such as INCA and LSLA, the value
in A is the only input operand and the result replaces the value in A. In other cases, such as ADD and AND,
there are two operands: the value in A and a second value from memory. The result of the arithmetic or
logical operation replaces the value in A.
Some instructions, such as memory-to-memory move instructions (MOV), do not use the accumulator.
DBNZ also relieves A because it allows a loop counter to be implemented in a memory variable rather than
the accumulator.
During reset, the accumulator is loaded with $00.
PC
SPC
CARRY
ZERO
0
7
13
ACCUMULATOR
A
SHADOW PROGRAM COUNTER
87
PROGRAM COUNTER
CCR
C
Z
CONDITION CODE REGISTER
0
7
0
7
0
7
INDEXED DATA REGISTER D[X] (location $000E)
INDEX REGISTER
X (location $000F)
PAGE SELECT REG
PAGESEL (location $001F)
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