Visible to Intel only — GUID: kqx1481130056425
Ixiasoft
Visible to Intel only — GUID: kqx1481130056425
Ixiasoft
16.4.3.2.1.1. Stream Data Transmit
If the bytcnt register is reset to 0, the transfer is an open‑ended stream‑write data transfer. During this data transfer, the data path continuously transmits data in a stream until the host software issues an SD/SDIO STOP command. A stream data transfer is terminated when the end bit of the STOP command and end bit of the data match over two clock cycles.†
If the bytcnt register is written with a nonzero value and the send_auto_stop bit in the cmd register is set to 1, the STOP command is internally generated and loaded in the command path when the end bit of the STOP command occurs after the last byte of the stream write transfer matches. This data transfer can also terminate if the host issues a STOP command before all the data bytes are transferred to the card bus.†