TMS320C6455
SPRS276M –MAY 2005–REVISED MARCH 2012
www.ti.com
Table 3-13. Device Status Register (DEVSTAT) Field Descriptions (continued)
Bit Field Value Description
14 MCBSP1_EN McBSP1 Enable (MCBSP1_EN) status bit
Shows the status of which function is enabled on the McBSP1/GPIO muxed pins.
0 GPIO pin functions enabled (default)
1 McBSP1 pin functions enabled
13 PCI66 PCI Frequency Selection (PCI66) status bit
Shows the PCI operating frequency selected at reset.
0 PCI operates at 33 MHz (default)
1 PCI operates at 66 MHz
12 Reserved Reserved. Read-only, writes have no effect.
12 Reserved Reserved. Read-only, writes have no effect.
11 PCI_EEAI PCI I2C EEPROM Auto-Initialization (PCI_EEAI) status bit
Shows whether the PCI auto-initialization via external I2C EEPROM is enabled/disabled.
0 PCI auto-initialization through external I2C EEPROM is disabled; the PCI peripheral uses the
specified PCI default values (default).
1 PCI auto-initialization through external I2C EEPROM is enabled; the PCI peripheral is configured
through external I2C EEPROM provided the PCI peripheral pin is enabled (PCI_EN = 1).
10:9 MACSEL[1:0] EMAC Interface Select (MACSEL[1:0]) status bits
Shows which EMAC interface mode has been selected.
00 10/100 EMAC/MDIO with MII Interface (default)
01 10/100 EMAC/MDIO with RMII Interface
10 10/100/1000 EMAC/MDIO with GMII Interface
11 10/100/1000 EMAC/MDIO with RGMII Mode Interface
[RGMII interface requires a 1.8-V or 1.5-V I/O supply]
8 Reserved Reserved. Read-only, writes have no effect.
7 UTOPIA_EN UTOPIA enable (UTOPIA_EN) status bit
Shows the status of which function is enabled on the UTOPIA/EMAC and UTOPIA/MDIO
multiplexed pins.
0 EMAC and MDIO pin functions are enabled (default)
1 UTOPIA pin functions are enabled
6 LENDIAN Device Endian mode (LENDIAN)
Shows the status of whether the system is operating in Big Endian mode or Little Endian mode
(default).
0 System is operating in Big Endian mode
1 System is operating in Little Endian mode (default)
5 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
4 AECLKINSEL EMIFA input clock select
Shows the status of what clock mode is enabled or disabled for EMIFA.
0 AECLKIN (default mode)
1 SYSCLK4 (CPU/x) Clock Rate. The SYSCLK4 clock rate is software selectable via the PLL1
Controller. By default, SYSCLK4 is selected as CPU/8 clock rate.
72 Device Configuration Copyright © 2005–2012, Texas Instruments Incorporated
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