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DATASHEET |
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ISSUE 6 |
| SATURN USER NETWORK INTERFACE |
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Pin Name | Type | Pin | Function |
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TFPO | Output | AB11 | The Transmit Frame Pulse Output (TFPO) pulses |
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| high for one TCLK cycle every 2430 TCLK cycles |
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| and provides an 8 KHz timing reference. TFPO can |
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| be assigned to any of the four channels using |
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| TFPO_CH[1:0] configuration register bits, with the |
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| restriction that the selected channel must be self- |
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| timed (not in |
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| TFPO is updated on the rising edge of TCLK. |
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9.2UTOPIA Level 2 System Interface
Pin Name
Type
Pin No.
Function
TDAT[15] | Input | A20 | UTOPIA Transmit Cell Data Bus (TDAT[15:0]). |
TDAT[14] |
| C19 | This data bus carries the ATM cell octets that are |
TDAT[13] |
| B20 | |
| written to the selected transmit FIFO. TDAT[15:0] is | ||
TDAT[12] |
| A21 | |
| considered valid only when TENB is simultaneously | ||
TDAT[11] |
| D19 | |
| asserted and the | ||
TDAT[10] |
| C20 | |
| TADR[4:0]. | ||
TDAT[9] |
| D21 | |
| TDAT[15:0] is sampled on the rising edge of TFCLK. | ||
TDAT[8] |
| E20 | |
TDAT[7] |
| C23 |
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TDAT[6] |
| D22 |
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TDAT[5] |
| E21 |
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TDAT[4] |
| D23 |
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TDAT[3] |
| E22 |
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TDAT[2] |
| F21 |
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TDAT[1] |
| G20 |
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TDAT[0] |
| E23 |
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Proprietary and Confidential to | 15 |