參數(shù)資料
型號: MC56F8323
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: 16-bit Hybrid Controller(16位混合控制器)
中文描述: 16位混合控制器(16位混合控制器)
文件頁數(shù): 83/132頁
文件大小: 2202K
代理商: MC56F8323
Register Descriptions
56F8323 Technical Data
Preliminary
83
6.5.5
This read-only register displays the least significant half of the JTAG ID for the chip. This register
reads $001D.
Least Significant Half of JTAG ID (SIM_LSH_ID)
Figure 6-7 Least Significant Half of JTAG ID (SIM_LSH_ID)
6.5.6
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.
SIM Pull-up Disable Register (SIM_PUDR)
Figure 6-8 SIM Pull-up Disable Register (SIM_PUDR)
6.5.6.1
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
Reserved—Bits 15–12
6.5.6.2
This bit controls the pull-up resistors on the RESET pin.
RESET—Bit 11
6.5.6.3
This bit controls the pull-up resistors on the IRQA pin.
IRQ—Bit 10
6.5.6.4
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
Reserved—Bits 9–4
6.5.6.5
This bit controls the pull-up resistors on the TRST, TMS, and TDI pins.
JTAG—Bit 3
6.5.6.6
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
Reserved—Bits 2–0
Base + $7
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
1
0
0
0
0
0
0
0
0
0
1
1
1
0
1
Write
RESET
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
1
Base + $8
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
0
0
0
RESET
IRQ
0
0
0
0
0
0
JTAG
0
0
0
Write
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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