EMMC interface, pull-up resistance 47K to 1.8V, test pull-up resistance values see the table for different resistance values, test environment: When the multimeter 15B circuit board is powered off for more than 10 hours, the test resistance of the voltmeter is equivalent to the bridge voltage output. The test resistance at both ends may cause the internal mos to open and the test resistance is abnormal, but the test resistance of other PCBA does not appear. The resistance value is basically close to 47K.why？EMMC is suspected at first, the phenomenon still exists after disassembling EMMC, but other boards are normal is TDA4 cause?
design A board one A board two A board three B board test CALPAD 10k 9.96K 9.96K 9.96K 9.97K CLK 22R 22.1R 22.1R 22.1R 22.1R CMD 47K 9.58K 46.7K 46.7K 46.5K DAT0 47K 9.44K 9.57K 46.6K 46.6K DAT1 47K 9.56K 9.49K 46.7K 46.5K DAT2 47K 9.48K 9.56K 46.5K 46.5K DAT3 47K 9.58K 36.1K 46.7K 46.5K DAT4 47K 9.48K 9.56K 46.8K 46.8K DAT5 47K 9.57K 46.7K 46.7K 46.6K DAT6 47K 46.6K 46.8K 46.5K 40.3K DAT7 47K 46.7K 46.7K 46.6K 39.8K DS 10K 9.65K 9.6K 9.67K 9.7K
