Texas Instruments SM320C6455-EP manual Utopia Device-Specific Information, Utopia Registers

Models: SM320C6455-EP

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SM320C6455-EP

FIXED-POINT DIGITAL SIGNAL PROCESSOR

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SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008

7.19 UTOPIA

7.19.1 UTOPIA Device-Specific Information

The Universal Test and Operations PHY Interface for ATM (UTOPIA) peripheral is a 50 MHz, 8 Bit Slave-only interface. The UTOPIA is more simplistic than the Ethernet MAC, in that the UTOPIA is serviced directly by the EDMA3 controller. The UTOPIA peripheral contains two, two-cell FIFOs, one for transmit and one for receive, with which to buffer up data sent/received across the pins. There is a transmit and a receive event to the EDMA3 channel controller to enable servicing.

For more detailed information on the UTOPIA peripheral, see the TMS320C645x DSP Universal Test and Operations PHY Interface for ATM 2 (UTOPIA2) User's Guide (literature number SPRUE48).

7.19.2 UTOPIA Peripheral Register Description(s)

Table 7-104. UTOPIA Registers

HEX ADDRESS RANGE

ACRONYM

REGISTER NAME

02B4 0000

UCR

UTOPIA Control Register

02B4 0004

-

Reserved

02B4 0008

-

Reserved

02B4 000C

-

Reserved

02B4 0010

-

Reserved

02B4 0014

CDR

Clock Detect Register

02B4 0018

EIER

Error Interrupt Enable Register

02B4 001C

EIPR

Error Interrupt Pending Register

02B4 0020 - 02B4 01FF

-

Reserved

02B4 0200 - 02B7 FFFF

-

Reserved

Table 7-105. UTOPIA Data Queues (Receive and Transmit) Registers

HEX ADDRESS RANGE

ACRONYM

REGISTER NAME

3C00 0000 - 3C00 03FF

URQ

UTOPIA Receive (Rx) Data Queue

3C00 0400 - 3C00 07FF

UXQ

UTOPIA Transmit (Tx) Data Queue

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Texas Instruments SM320C6455-EP manual Utopia Device-Specific Information, Utopia Peripheral Register Descriptions