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型號(hào)：	S80C52CXXX-16
廠商：	ATMEL CORP
元件分類：	微控制器/微處理器
英文描述：	8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC44
封裝：	PLASTIC, LCC-44
文件頁(yè)數(shù)：	962/1021頁(yè)
文件大小：	15196K
代理商：	S80C52CXXX-16

32072H–AVR32–10/2012

AT32UC3A3

Public JTAG Instructions

The JTAG standard defines a number of public JTAG instructions. These instructions are

described in the sections below.

This instruction selects the 32 bit Device Identification register (DID) as Data Register. The DID

JEDEC. This is the default instruction after a JTAG reset. Details about the DID register can be

found in the module configuration section at the end of this chapter.

Starting in Run-Test/Idle, the Device Identification register is accessed in the following way:

Select the IR Scan path.

In Capture-IR: The IR output value is latched into the shift register.

In Shift-IR: The instruction register is shifted by the TCK input.

Return to Run-Test/Idle.

Select the DR Scan path.

In Capture-DR: The IDCODE value is latched into the shift register.

In Shift-DR: The IDCODE scan chain is shifted by the TCK input.

Return to Run-Test/Idle.

SAMPLE_PRELOAD

This instruction takes a snap-shot of the input/output pins without affecting the system operation,

and pre-loading the scan chain without updating the DR-latch. The boundary-scan chain is

selected as Data Register.

Starting in Run-Test/Idle, the Device Identification register is accessed in the following way:

Shows the number of bits in the data register chain when this instruction is active.

Example: 34 bits

DR input value

Shows which bit pattern to shift into the data register in the Shift-DR state when this

instruction is active. Multiple such lines may exist, e.g., to distinguish between

reads and writes.

Example: aaaaaaar xxxxxxxx xxxxxxxx xxxxxxxx xx

DR output value

Shows the bit pattern shifted out of the data register in the Shift-DR state when this

instruction is active. Multiple such lines may exist, e.g., to distinguish between

reads and writes.

Example: xx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxeb

Table 35-9.

Instruction Description (Continued)

Instruction

Description

Table 35-10. IDCODE Details

Instructions

IR input value

00001 (0x01)

IR output value

DR input value

xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

DR output value

Device Identification Register

相關(guān)PDF資料	PDF描述
S80C52CXXX-25SHXXX	8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQCC44
S80C32-20SHXXX:D	8-BIT, 20 MHz, MICROCONTROLLER, PQCC44
S80C32-20SHXXX:R	8-BIT, 20 MHz, MICROCONTROLLER, PQCC44
S80C32-40SHXXX:RD	8-BIT, 40 MHz, MICROCONTROLLER, PQCC44
S80C52XXX-12:RD	8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC44

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
S80C52T-12	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller
S80C52T-16	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller
S80C52T-20	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller
S80C52T-25	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller
S80C52T-30	制造商:未知廠家制造商全稱:未知廠家功能描述:8-Bit Microcontroller

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