Mesa 7I76 - Data Register; Local Read Operations; Local Write Operations

7I76 21
REFERENCE INFORMATION
SSLBP
DATA REGISTER
SSLBP has a global 8 bit data register for debug and custom setup purposes. This
register allows access to internal SSLBP parameters. The data register is right justified in
the 32 bit Hostmot2 register.
LOCAL READ OPERATIONS
The sequence used for reading a local SSLBP variable is as follows:
1. The parameter address ORed with the Request bit (bit 13) is written to the command
register.
2. The host polls the command register until it reads as zero.
3. The host reads the parameter byte from the data register
LOCAL WRITE OPERATIONS
The sequence used for writing a local SSLBP variable is as follows:
1. The host polls the command register until it reads as zero.
2. The host writes the data byte to the data register
3. The host writes the command register with the the parameter address Ored with both
the Request bit (bit 13) and the Write bit (bit 15)