參數(shù)資料
型號(hào): TMX320C6412GNZ
廠商: Texas Instruments, Inc.
英文描述: Signal Processor
中文描述: 信號(hào)處理器
文件頁數(shù): 57/159頁
文件大?。?/td> 1989K
代理商: TMX320C6412GNZ
Device Configurations
57
April 2003 Revised June 2004
SPRS219D
2.5
Device Status Register Description
The device status register depicts the status of the device peripheral selection. For the actual register bit
names and their associated bit field descriptions, see Figure 24 and Table 27.
31
24
Reserved
R-0
23
16
Reserved
R-0
15
14
13
12
11
10
9
8
Reserved
MAC_EN
HPI_WIDTH
PCI_EEAI
PCI_EN
R-0
R-x
R-x
R-x
R-x
7
6
5
4
3
2
1
0
Reserved
CLKMODE1
CLKMODE0
LENDIAN
BOOTMODE1
BOOTMODE0
AECLKINSEL1
AECLKINSEL0
R-x
R-x
R-x
R-x
R-x
R-x
R-x
R-x
Legend:
R = Read only; R/W = Read/Write; -n = value after reset
Figure 24. Device Status Register (DEVSTAT) Description 0x01B3 F004
Table 27. Device Status (DEVSTAT) Register Selection Bit Descriptions
BIT
NAME
DESCRIPTION
31:12
Reserved
Reserved. Read-only, writes have no effect.
11
MAC_EN
EMAC enable bit.
Shows the status of whether EMAC peripheral is enabled or disabled (default).
0
=
EMAC is disabled, and the module is powered down (default).
1
=
EMAC is enabled.
This bit has no effect if the PCI peripheral is enabled (PCI_EN = 1).
10
HPI_WIDTH
HPI bus width control bit.
Shows the status of whether the HPI bus operates in 32-bit mode or in 16-bit mode (default).
0
=
HPI operates in 16-bit mode. (default).
1
=
HPI operates in 32-bit mode.
9
PCI_EEAI
PCI EEPROM auto-initialization bit (PCI auto-initialization via external EEPROM).
Shows the status of whether the PCI module initializes internal registers via external EEPROM or if the
internal PCI default values are used instead (default).
0
=
PCI auto-initialization through EEPROM is disabled; the PCI peripheral uses the specified
PCI default values (default).
PCI auto-initialization through EEPROM is enabled; the PCI peripheral is configured
through EEPROM provided the PCI peripheral pin is enabled (PCI_EN = 1).
1
=
8
PCI_EN
PCI enable bit.
Shows the status of whether the PCI peripheral is enabled or disabled (default).
0
=
PCI disabled. (default).
1
=
PCI enabled.
Global select for the PCI vs. HPI/EMAC/MDIO/GPIO peripherals.
7
Reserved
Reserved. Read-only, writes have no effect.
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