| 摘要 |
Data not stored in the DRAM array of a SDRAM module, such as the output of a temperature sensor, are read from the SDRAM in a synchronous read cycle that is seamlessly interspersed with SDRAM read and write cycles directed to data in the DRAM array. Control information, including a non-DRAM indicator in the case of data not stored in a DRAM array, are maintained for all read cycles. Returned data stored in a DRAM array and data not stored in a DRAM array are buffered together. When extracting read data from the buffer, data not stored in a DRAM array are identified by the non-DRAM indicator and directed to circuits within the controller. When data not stored in the DRAM array indicates the temperature of the SDRAM die, the controller may adjust the refresh rate in response to the temperature. |
