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參數(shù)資料
| 型號(hào)： | 56F8014 |
| 廠(chǎng)商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | 16-bit Digital Signal Controllers |
| 中文描述： | 16位數(shù)字信號(hào)控制器 |
| 文件頁(yè)數(shù)： | 75/124頁(yè) |
| 文件大?。?/td> | 1878K |
| 代理商： | 56F8014 |
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Register Descriptions
56F8014 Technical Data, Rev. 3
Freescale Semiconductor
Preliminary
75
6.3.10
I/O Short Address Location Register (SIM_IOSAHI and
SIM_IOSALO)
The I/O Short Address Location registers are used to specify the memory referenced via the I/O short
address mode. The I/O short address mode allows the instruction to specify the lower six bits of address;
the upper address bits are not directly controllable. This register set allows limited control of the full
address, as shown in
Figure 6-12
.
Figure 6-12 I/O Short Address Determination
With this register set, an interrupt driver can set the SIM_IOSALO register pair to point to its peripheral
registers and then use the I/O Short addressing mode to reference them. The ISR should restore this register
to its previous contents prior to returning from interrupt.
Note:
The default value of this register set points to the EOnCE registers.
Note:
The pipeline delay between setting this register set and using short I/O addressing with the new value
is five instruction cycles.
Figure 6-13 I/O Short Address Location High Register (SIM_IOSAHI)
6.3.10.1 Reserved—Bits 15—2
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
Base + $D
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ISAL[23:22]
Write
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
Instruction Portion
“
Hard Coded” Address Portion
6 Bits from I/O Short Address Mode Instruction
16 Bits from SIM_IOSALO Register
2 bits from SIM_IOSAHI Register
Full 24-Bit for Short I/O Address
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 56F8014_07 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| 56F8014_08 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| 56F801E | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| 56F801XBLUG | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| 56F802 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
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