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IDT82V2048 Datasheet(PDF) 9 Page - Integrated Device Technology |
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IDT82V2048 Datasheet(HTML) 9 Page - Integrated Device Technology |
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9 / 62 page  9 IDT82V2048 OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT INDUSTRIAL TEMPERATURE RANGES SDO/RDY/ACK O83 K14 SDO: Serial Data Output In serial host mode, the data is output on this pin. In serial write operation, SDO is in high impedance for the first 8 SCLK clock cycles and driven low for the remaining 8 SCLK clock cycles. In serial read opera- tion, SDO is in high-Z only when SDI is in address/command byte. Data on pin SDO is clocked out of the device on the falling edges of SCLK if pin CLKE is high, or on the rising edges of SCLK if pin CLKE is low. RDY: Ready Output In parallel Intel host mode, the high level of this pin reports to the host that bus cycle can be completed, while low reports the host must insert wait states. ACK: Acknowledge Output (Active Low) In parallel Motorola host mode, the low level of this pin indicates that valid information on the data bus is ready for a read operation or acknowledges the acceptance of the written data during a write operation. INT O Open Drain 82 K13 INT: Interrupt (Active Low) This is an open drain, active low interrupt output. Four sources may cause the interrupt . Refer to 2.19 Interrupt Handling for details. LP7/D7/AD7 LP6/D6/AD6 LP5/D5/AD5 LP4/D4/AD4 LP3/D3/AD3 LP2/D2/AD2 LP1/D1/AD1 LP0/D0/AD0 I/O High-Z 28 27 26 25 24 23 22 21 K1 J1 J2 J3 J4 H2 H3 G2 LPn: Loopback Select 7~0 In hardware control mode, pin LPn configures the corresponding channel in different loopback mode, as follows: Refer to 2.17 Loopback Mode for details. Dn: Data Bus 7~0 In non-multiplexed host mode, these pins are the bi-directional data bus. ADn: Address/Data Bus 7~0 In multiplexed host mode, these pins are the multiplexed bi-directional address/data bus. In serial host mode, these pins should be grounded. Table-1 Pin Description (Continued) Name Type Pin No. Description TQFP144 PBGA160 LPn Loopback Configuration Low Remote Loopback VDDIO/2 No loopback High Analog Loopback |
Similar Part No. - IDT82V2048_10 |
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Similar Description - IDT82V2048_10 |
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