參數(shù)資料
型號(hào)： COP8CCR9LVA8
廠商： National Semiconductor
文件頁(yè)數(shù)： 104/111頁(yè)
文件大?。?/td> 0K
描述： IC MCU EEPROM 8BIT 68-PLCC
標(biāo)準(zhǔn)包裝： 18
系列： COP8™ 8C
核心處理器： COP8
芯體尺寸： 8-位
速度： 20MHz
連通性： Microwire/Plus（SPI），UART/USART
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 59
程序存儲(chǔ)器容量： 32KB（32K x 8）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 16x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 68-LCC（J 形引線）
包裝： 管件
其它名稱： *COP8CCR9LVA8
SNOS535I – OCTOBER 2000 – REVISED MARCH 2013
Reg/Data
Contents
Memory
Before
After
Memory Location
62 Hex
03 Hex
0005 Hex
B Pointer
05 Hex
06 Hex
Intermediate. The data for the operation follows the instruction opcode in program memory. In assembly
language, the number sign character (#) indicates an immediate operand.
Example:
Load Accumulator Immediate
LD A,#05
Reg/Data
Contents
Memory
Before
After
Accumulator
XX Hex
05 Hex
Immediate Short. This is a special case of an immediate instruction. In the “Load B immediate”
instruction, the 4-bit immediate value in the instruction is loaded into the lower nibble of the B register. The
upper nibble of the B register is reset to 0000 binary.
Example:
Load B Register Immediate Short
LD B,#7
Reg/Data
Contents
Memory
Before
After
B Pointer
12 Hex
07 Hex
Indirect from Program Memory. This is a special case of an indirect instruction that allows access to
data tables stored in program memory. In the “Load Accumulator Indirect” (LAID) instruction, the upper
and lower bytes of the Program Counter (PCU and PCL) are used temporarily as a pointer to program
memory. For purposes of accessing program memory, the contents of the Accumulator and PCL are
exchanged. The data pointed to by the Program Counter is loaded into the Accumulator, and
simultaneously, the original contents of PCL are restored so that the program can resume normal
execution.
Example:
Load Accumulator Indirect
LAID
Reg/Data
Contents
Memory
Before
After
PCU
04 Hex
PCL
35 Hex
36 Hex
Accumulator
1F Hex
25 Hex
Memory Location
25 Hex
041F Hex
5.19.3.2 Tranfer-of-Control Addressing Modes
Program instructions are usually executed in sequential order. However, Jump instructions can be used to
change the normal execution sequence. Several transfer-of-control addressing modes are available to
specify jump addresses.
92
Functional Description
Copyright 2000–2013, Texas Instruments Incorporated
Product Folder Links: COP8CBR9 COP8CCR9 COP8CDR9
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