MEC1404 Datasheet, PDF (108/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
TABLE 4-7: LPC I/O REGISTER MAP (CONTINUED)
Logical Device
BAR LPC
Host Address
Example
BAR LPC
Host
Address
LPC
Address
Mask
Offsets
Claimed
Register Name
8042 Emulated
Byte Boundary
Keyboard Controller
0060h
ACPI EC0
Byte Boundary
0062h
ACPI EC1
8 Byte Bound-
ary
0070h
ACPI PM1
8 Byte Bound-
ary
0078h
Legacy
Port92/GateA20
UART 0
Any I/O Byte
Address
8 Byte Bound-
ary
0092h
03F0h
Mailbox Interface
2 Byte Bound-
ary
0100h
4 BAR+0 Write: WRITE_DATA
Read: READ_DATA
+4 Write: WRITE_CMD
Read: STATUS
4 BAR+0 ACPI_OS_DATA_BYTE_0
+4 Write: ACPI_OS_COMMAND
Read: OS STATUS OS
7 BAR+0 ACPI_OS_DATA_BYTE_0
+1 ACPI_OS_DATA_BYTE_1
+2 ACPI_OS_DATA_BYTE_2
+3 ACPI_OS_DATA_BYTE_3
+4 Write: ACPI_OS_COMMAND
Read: OS STATUS OS
+5 OS Byte Control
+6 Reserved
+7 Reserved
7 BAR+0 Power Management 1 Status 1
+1 Power Management 1 Status 2
+2 Power Management 1 Enable 1
+3 Power Management 1 Enable 2
+4 Power Management 1 Control 1
+5 Power Management 1 Control 2
+6 Power Management 2 Control 1
+7 Power Management 2 Control 2
0 BAR+0 Port 92
7 BAR+0 Write (DLAB=0): Transmit Buffer
Read (DLAB=0): Receive Buffer
R/W (DLAB=1): Programmable BAUD
Rate Generator LSB
+1 R/W (DLAB=0): Interrupt Enable Regis-
ter
R/W (DLAB=1): Programmable BAUD
Rate Generator MSB
+2 Write: FIFO Control
Read: Interrupt Identification
+3 Line Control
+4 Modem Control
+5 Line Status
+6 Modem Status
+7 Scratchpad Register
1 BAR+0 MBX_INDEX
+1 MBX_DATA
DS00001956D-page 108
 2015 - 2016 Microchip Technology Inc.