AM3703 : MMC1 Clock Problem

Hi,

We're using AM3703 processor in our design. We're facing a problem that MMC1 clk is not coming out from processor on two boards.

Observations on Probelm board1:

1. MMC1 clk line is always high but with working board it always low.

2. When we isolated and measured the impedance at processor end it always open and at load side more than 100k. Measure low at processor end

Observations on Probelm board2:

1. MMC1 clk line is low .

2. When we isolated and measured the impedance at processor  and  load side are more than 100k. Measured low at processor end

Kindly guide me on this issue.

Thanks in advance for your suppport

Thanks & regards,

Nambirajan E