參數(shù)資料
型號: MC56F8122VFAE
廠商: Freescale Semiconductor
文件頁數(shù): 121/136頁
文件大小: 0K
描述: IC DSP 16BIT 40MHZ 48-LQFP
標(biāo)準(zhǔn)包裝: 250
系列: 56F8xxx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 40MHz
連通性: SCI,SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 21
程序存儲(chǔ)器容量: 32KB(16K x 16)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 4K x 16
電壓 - 電源 (Vcc/Vdd): 2.25 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 6x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 105°C
封裝/外殼: 48-LQFP
包裝: 托盤
產(chǎn)品目錄頁面: 734 (CN2011-ZH PDF)
Register Descriptions
56F8322 Technical Data, Rev. 16
Freescale Semiconductor
85
Preliminary
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)
6.5.5
Least Significant Half of JTAG ID (SIM_LSH_ID)
This read-only register displays the least significant half of the JTAG ID for the chip. This register reads
$001D.
Figure 6-7 Least Significant Half of JTAG ID (SIM_LSH_ID)
6.5.6
SIM Pull-up Disable Register (SIM_PUDR)
Most of the pins on the chip have on-chip pull-up resistors. Pins which can operate as GPIO can have these
resistors disabled via the GPIO function. Non-GPIO pins can have their pull-ups disabled by setting the
appropriate bit in this register. Disabling pull-ups is done on a peripheral-by-peripheral basis (for pins not
muxed with GPIO). Each bit in the register (see Figure 6-8) corresponds to a functional group of pins. See
Table 2-2 to identify which pins can deactivate the internal pull-up resistor.
Figure 6-8 SIM Pull-up Disable Register (SIM_PUDR)
6.5.6.1
Reserved—Bits 15–12
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
6.5.6.2
RESET—Bit 11
This bit controls the pull-up resistors on the RESET pin.
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
1
111
1
010
0
Base + $7
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
1
0
1
Write
RESET
0
000
1
110
1
Base + $8
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
RESET
IRQ
0
JTAG
0
Write
RESET
00
0
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