MMC/eMMC 4.5 (Embedded Multi Media Card)
The Multi Media Card (MMC) or the Embedded Multi Media Card (eMMC) version 5.1 is a flash memory card standard.
Wrong Bus Mode/width/latch settings cause decode failure; Command and Data can be analyzed separately. For channel-prefix differences, see Settings.
Decode Settings
- Channel: Assign CLK, CMD, DS, and Data0–Data7 channels.
- Analysis:
- Command: Analyze Command. Default is this mode selected.
- Data: Analyze Data. Default is not selected.
- Bus Mode: Legacy/High Speed/HS200/HS400. Default is High Speed.
- Decode Startup Mode:
- Bus Width: 1-bit/4-bit/8-bit Data. Default is 4-bit Data.
- Latch Method: SDR/DDR. Default is DDR.
- Boot Settings:
- Bus Width: 1-bit/4-bit/8-bit Data. Default is 1-bit Data.
- Latch Method: SDR/DDR. Default is SDR.
- Options:
- Adv. Report: Further decode results in the report. Field enabled (Enable) when checked. Default is unchecked.
- 3 Pin Mode: Analyze with CLK, CMD, and D0. Field enabled (Enable) when checked. Default is unchecked (often field disabled (Disable)).
- No CLK Mode: Analyze without CLK. Field enabled (Enable) when checked. Default is unchecked.
- Auto Phase Correction: Automatic phase correction. Field enabled (Enable) when checked. Default is checked.
- Detect BOT ACK: Detect BOOT ACK when the DUT is not powered on. Field enabled (Enable) when checked. Default is unchecked.
- DS: Use Data Strobe. Field enabled (Enable) when checked. Default is unchecked (often field disabled (Disable)).
Result
Command:
Data:
Adv. Report:
No CLK mode:
Command + Data (Customized Report):
