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參數(shù)資料
| 型號： | MQ80C154-16P883 |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 16 MHz, MICROCONTROLLER, CQFP44 |
| 文件頁數(shù)： | 126/142頁 |
| 文件大?。?/td> | 61013K |
| 代理商： | MQ80C154-16P883 |
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211
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P [DATASHEET]
8285E–AVR–02/2013
Figure 24-2. TAP Controller State diagram.
24.4
TAP Controller
The TAP controller is a 16-state finite state machine that controls the operation of the Boundary-scan circuitry,
JTAG programming circuitry, or On-chip Debug system. The state transitions depicted in Figure 24-2 depend on
the signal present on TMS (shown adjacent to each state transition) at the time of the rising edge at TCK. The ini-
tial state after a Power-on Reset is Test-Logic-Reset.
As a definition in this document, the LSB is shifted in and out first for all Shift Registers.
Assuming Run-Test/Idle is the present state, a typical scenario for using the JTAG interface is:
At the TMS input, apply the sequence 1, 1, 0, 0 at the rising edges of TCK to enter the Shift Instruction Register –
Shift-IR state. While in this state, shift the four bits of the JTAG instructions into the JTAG Instruction Register
from the TDI input at the rising edge of TCK. The TMS input must be held low during input of the 3 LSBs in order
to remain in the Shift-IR state. The MSB of the instruction is shifted in when this state is left by setting TMS high.
While the instruction is shifted in from the TDI pin, the captured IR-state 0x01 is shifted out on the TDO pin. The
JTAG Instruction selects a particular Data Register as path between TDI and TDO and controls the circuitry
surrounding the selected Data Register
Apply the TMS sequence 1, 1, 0 to re-enter the Run-Test/Idle state. The instruction is latched onto the parallel
output from the Shift Register path in the Update-IR state. The Exit-IR, Pause-IR, and Exit2-IR states are only
used for navigating the state machine
Test-Logic-Reset
Run-Test/Idle
Shift-DR
Exit1-DR
Pause-DR
Exit2-DR
Update-DR
Select-IR Scan
Capture-IR
Shift-IR
Exit1-IR
Pause-IR
Exit2-IR
Update-IR
Select-DR Scan
Capture-DR
0
1
0
11
1
00
11
1
0
1
0
1
0
1
0
1
0
1
0
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MQ83C154XXX-L16/883D | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 |
| MQ83C154CXXX-25/883R | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44 |
| MR80C154-L16/883R | 8-BIT, 16 MHz, MICROCONTROLLER, CQCC44 |
| MQ83C154CXXX-L16P883R | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 |
| MR83C154CXXX-20P883R | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQCC44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MQ80C154-20 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MQ80C154-25 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MQ80C154-30 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MQ80C154-36 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MQ80C154-L16 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
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