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| 型號(hào)： | 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(yè)數(shù)： | 142/142頁(yè) |
| 文件大小： | 61013K |
| 代理商： | MQ80C154-16P883 |
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ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P [DATASHEET]
8285E–AVR–02/2013
Using this algorithm, the timing constraint on the HOLD signal constrains the TCK clock frequency. As the algo-
rithm keeps HOLD high for five steps, the TCK clock frequency has to be at least five times the number of scan bits
divided by the maximum hold time, t
hold,max.
25.6
Boundary-scan Order
Table 25-5 shows the Scan order between TDI and TDO when the Boundary-scan chain is selected as data path.
Bit 0 is the LSB; the first bit scanned in, and the first bit scanned out. The scan order follows the pin-out order as far
as possible. Therefore, the bits of Port A is scanned in the opposite bit order of the other ports. Exceptions from the
rules are the Scan chains for the analog circuits, which constitute the most significant bits of the scan chain regard-
less of which physical pin they are connected to. In Figure 25-3, PXn Data corresponds to FF0, PXn Control
corresponds to FF1, and PXn. Pull-up_enable corresponds to FF2. Bit 4, 5, 6, and 7of Port F is not in the scan
chain, since these pins constitute the TAP pins when the JTAG is enabled.
Table 25-4.
Algorithm for using the ADC.
Step
Actions
ADCEN
DAC
MUXEN
HOLD
PRECH
PA3.
Data
PA3.
Control
PA3.
Pull-up_
Enable
1
SAMPLE_P
RELOAD
1
0x200
0x08
1
0
2
EXTEST
1
0x200
0x08
0
1
0
3
1
0x200
0x08
1
0
4
1
0x123
0x08
1
0
5
1
0x123
0x08
1
0
6
Verify the
COMP bit
scanned out
to be 0
1
0x200
0x08
1
0
7
1
0x200
0x08
0
1
0
8
1
0x200
0x08
1
0
9
1
0x143
0x08
1
0
10
1
0x143
0x08
1
0
11
Verify the
COMP bit
scanned out
to be 1
1
0x200
0x08
1
0
Table 25-5.
Atmel ATmega169A/169PA/329A/329PA/649A/649P Boundary-scan order, 64-pin.
Bit number
Signal name
Module
197
AC_IDLE
Comparator
196
ACO
195
ACME
194
AINBG
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| 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 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| 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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