F81867 Datasheet, PDF (117/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

Debug Port EC Address Low Byte⎯ Offset 04h
Bit
Name
R/W Reset Default
Description
7-0 DBPORT_EC_ADDR R 5VSB 0 This is the low byte of EC peripheral address.
F81867
Debug Port EC Address High Byte⎯ Offset 05h
Bit
Name
R/W Reset Default
Description
7-0 DBPORT_EC_ADDR R 5VSB 0 This is the high byte of EC peripheral address.
6.14 H2E Function
H2E is the interface for host to EC. Host could use this register to notify the EC what to do and can
get information return from EC. Some registers are pre-definition. User could change their definition for
custom use.
H2E Control Register ⎯ Offset 00h
Bit
Name
R/W Reset Default
Description
7 P80_DEC_RANGE R/W 5VSB
This bit is used to select the 0x80 port (the address could be set by EC)
decode range.
0
0: Decode 0x80 only.
1: Decode 0x80 and 0x81.
0: Disable EC asserts interrupt to Host.
6
E2H_INT_EN R/W 5VSB 0
1: Enable EC asserts interrupt to Host.
5 E2H_DATA_AVAIL R 5VSB
0
This bit is set when EC write data to E2H_DATA (offset + 02h) and is auto
clear when host read E2H_DATA.
4 H2E_DATA_AVAIL R 5VSB
0
This bit is set when hostwrite data to H2E_DATA (offset + 01h) and is auto
clear when EC read H2E_DATA.
3-2 E2H_DATA_TYPE R 5VSB
This byte is pre-definition for the type of E2H_DATA. User could change its
0 usage corresponding to their implementation. For the pre-definition function,
host read the type to determine the meaning of E2H_DATA.
1-0 H2E_DATA_TYPE R 5VSB
This byte is pre-definition for the type of H2E_DATA. User could change its
0 usage corresponding to their implementation. For the pre-definition function,
host read the type to determine the meaning of H2E_DATA.
H2E Data Register ⎯ Offset 01h
Bit
Name
R/W Reset Default
7-0
H2E_DATA
R/W 5VSB 0 Host to EC data.
Description
E2H Data Register ⎯ Offset 02h
Bit
Name
R/W Reset Default
Description
7-0
E2H_DATA
R 5VSB
0
This byte is written by EC. Host could read this byte to get the information
return from EC.
117
Dec, 2011
V0.12P