參數(shù)資料
型號(hào)： MC56F8347VPY60
廠商： MOTOROLA INC
元件分類： 數(shù)字信號(hào)處理
英文描述： 16-BIT, 120 MHz, OTHER DSP, PQFP160
封裝： LQFP-160
文件頁數(shù)： 7/160頁
文件大?。?/td> 2217K
代理商： MC56F8347VPY60
104
56F8347 Technical Data
Preliminary
6.5.2.4
External Reset (EXTR)—Bit 3
If 1, the EXTR bit indicates an external system reset has occurred. This bit will be cleared by a
Power-On Reset or by software. Writing a 0 to this bit position will set the bit, while writing a 1 to
the bit position will clear it. Basically, when the EXTR bit is 1, the previous system reset was
caused by the external RESET pin being asserted low.
6.5.2.5
Power-On Reset (POR)—Bit 2
When 1, the POR bit indicates a Power-On Reset occurred some time in the past. This bit can be
cleared only by software or by another type of reset. Writing a 0 to this bit will set the bit, while
writing a 1 to the bit position will clear the bit. In summary, if the bit is 1, the previous system reset
was due to a Power-On Reset.
6.5.2.6
Reserved—Bits 1–0
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
6.5.3
SIM Software Control Registers (SIM_SCR0, SIM_SCR1,
SIM_SCR2, and SIM_SCR3)
Only SIM_SCR0 is shown below. SIM_SCR1, SIM_SCR2, and SIM_SCR3 are identical in
functionality.
Figure 6-5 SIM Software Control Register 0 (SIM_SCR0)
6.5.3.1 Software Control Data 1
(FIELD)—Bits 1
5–0
This register is reset only by the Power-On Reset (POR). It has no part-specific functionality and
is intended for use by a software developer to contain data that will be unaffected by the other reset
sources (RESET pin, software reset, and COP reset).
6.5.4
Most Significant Half of JTAG ID (SIM_MSH_ID)
This read-only register displays the most significant half of the JTAG ID for the chip. This register
reads $01F4.
Figure 6-6 Most Significant Half of JTAG ID (SIM_MSH_ID)
Base + $2
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
FIELD
Write
RESET
0
0000
0
Base + $6
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
1
0
1
0
Write
RESET
0
0000
0
1
0
1
0
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相關(guān)代理商/技術(shù)參數(shù)
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