SC9821C
Send the shielded time to register (8’h5b), the unit is 128*59ns=7.552us, the length of shake signal
within the input value, it will not be considered as shake signal. The maximum shake shield time is
255x7.552us = 1,925.880 us.
4.5 Begin to encode and decode
HOST sends encoding start command. Send 0xa1 to register MSC80H(8’h50).
4.6 Read Q sub code
Read Q sub code of Cd every other time, and if the Q sub code is not continuous, do not enter Esp
control flow, delay and read again. if the Q sub code is continuous, enter Esp main control flow.
4.7 Adopt query method to detect the state
HOST will send query command every other time. Read register MSC90H(8’h53).
4.8 Send WAQV signal
HOST sends affirm command of effective signal. When the state is normal, send the command 0x80 to
register MSC83H(8’h51), and record the current effective address of Q sub code.
4.9 Send the compare& connect command.
When read the three abnormal states of shake signal, input buffer over flow and Sdram data overflow, take
CD back according to the effective address of Q sub code. Then begin to compare& connect to correct data.
HOST configures the compare&connect command. There are 3 methods (16•bit , 12•bit, 8•bit precision).
Send the command to register MSC83H(8’h51).
HOST sends the compare & connect start command. There are two methods(3 pairs data comparative,
direct compare & connect). Send the command to register MSC80H(8’h51).
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