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LCMXO2-256ZE-1TG100C 数据表(PDF) 36 Page - Lattice Semiconductor |
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LCMXO2-256ZE-1TG100C 数据表(HTML) 36 Page - Lattice Semiconductor |
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36 / 106 page  2-32 Architecture MachXO2 Family Data Sheet User Flash Memory (UFM) MachXO2-640/U and higher density devices provide a User Flash Memory block, which can be used for a variety of applications including storing a portion of the configuration image, initializing EBRs, to store PROM data or, as a general purpose user Flash memory. The UFM block connects to the device core through the embedded function block WISHBONE interface. Users can also access the UFM block through the JTAG, I 2C and SPI interfaces of the device. The UFM block offers the following features: • Non-volatile storage up to 256Kbits • 100K write cycles • Write access is performed page-wise; each page has 128 bits (16 bytes) • Auto-increment addressing • WISHBONE interface For more information on the UFM, please refer to TN1205, Using User Flash Memory and Hardened Control Func- tions in MachXO2 Devices. Standby Mode and Power Saving Options MachXO2 devices are available in three options for maximum flexibility: ZE, HC and HE devices. The ZE devices have ultra low static and dynamic power consumption. These devices use a 1.2V core voltage that further reduces power consumption. The HC and HE devices are designed to provide high performance. The HC devices have a built-in voltage regulator to allow for 2.5V VCC and 3.3V VCC while the HE devices operate at 1.2V VCC. MachXO2 devices have been designed with features that allow users to meet the static and dynamic power requirements of their applications by controlling various device subsystems such as the bandgap, power-on-reset circuitry, I/O bank controllers, power guard, on-chip oscillator, PLLs, etc. In order to maximize power savings, MachXO2 devices support an ultra low power Stand-by mode. While most of these features are available in all three device types, these features are mainly intended for use with MachXO2 ZE devices to manage power con- sumption. In the stand-by mode the MachXO2 devices are powered on and configured. Internal logic, I/Os and memories are switched on and remain operational, as the user logic waits for an external input. The device enters this mode when the standby input of the standby controller is toggled or when an appropriate I 2C or JTAG instruction is issued by an external master. Various subsystems in the device such as the band gap, power-on-reset circuitry etc can be configured such that they are automatically turned “off” or go into a low power consumption state to save power when the device enters this state. |
类似零件编号 - LCMXO2-256ZE-1TG100C |
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类似说明 - LCMXO2-256ZE-1TG100C |
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