參數(shù)資料
型號(hào)： MC9RS08KA1CSCR
廠商： Freescale Semiconductor
文件頁數(shù)： 57/136頁
文件大?。?/td> 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 4 Memory
MC9RS08KA2 Series Data Sheet, Rev. 4
Freescale Semiconductor
27
4.2
Unimplemented Memory
Attempting to access either data or an instruction at an unimplemented memory address will cause reset.
4.3
Indexed/Indirect Addressing
Register D[X] and register X together perform the indirect data access. Register D[X] is mapped to address
$000E. Register X is located in address $000F. The 8-bit register X contains the address that is used when
register D[X] is accessed. Register X is cleared to zero upon reset. By programming register X, any
location on the first page ($0000–$00FF) can be read/written via register D[X]. Figure 4-2 shows the
relationship between D[X] and register X. For example, in HC08/S08 syntax lda ,x is comparable to lda
D[X] in RS08 coding when register X has been programmed with the index value.
The physical location of $000E is in RAM. Accessing the location through D[X] returns $000E RAM
content when register X contains $0E. The physical location of $000F is register X, itself. Reading the
location through D[X] returns register X content; writing to the location modifies register X.
Figure 4-2. Indirect Addressing Registers
4.4
RAM and Register Addresses and Bit Assignments
The fast access RAM area can be accessed by instructions using tiny, short, and direct addressing mode
instructions. For tiny addressing mode instructions, the operand is encoded along with the opcode to a
single byte.
D[X]
Register X
Content of this location can be accessed via D[X]
$000E
$000F
$00FF
Address indicated in
$0100
Register X can specify
any location between
$0000–$00FF
Register X
$0000
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