Intel E3815 FH8065301567411 Data Sheet

 

Intel

®

 Atom™ Processor E3800 Product Family

Datasheet

473

GMBUS Status Register gmbus status (gmbus_register.v reg_gmbus2)

Default: 00000800h

7:1

0b

RW

When a GMBUS cycle is to be 

generated using the Bus Cycle Select field, this field specifies the value of the slave 

address that is to be sent out.  

For use with 10-bit slave address devices, set this value to 11110XXb (where the last 

two bits (xx) are the two MSBs of the 10-bit address) and the slave direction bit to a 

write. This is followed by the first data byte being the 8 LSBs of the 10-bit slave 

address. 

Special Slave Addresses 

0000 000R = General Call Address 

0000 000W = Start byte 

0000 001x = CBUS Address 

0000 010x = Reserved 

0000 011x = Reserved 

0000 1xxx = Reserved 

1111 1xxx = Reserved 

1111 0xxx = 10-Bit addressing

0

0b

RW

When a GMBUS cycle is to be generated based on the Bus 

Cycle Select, this bit determines if the operation will be a read or a write. A read 

operation with the index enabled will perform a write with just the index followed by a 

re-start and a read. 

1 = Indicates that a Read from the slave device operation is to be performed. 

0 = Indicates that a Write to slave device operation is to be performed.

Memory Mapped I/O Register

(Size: 32 bits)

PCI Configuration Register (Size: 32 

bits)
GTTMMADR_LSB Reference: 

[B:0, D:2, F:0] + 10h