MEC1404 Datasheet, PDF (279/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
17.11 Runtime Registers
The registers listed in the Runtime Register Summary table are for a single instance of the UART. The addresses of
each register listed in this table are defined as a relative offset to the host “Base Address” defined in Runtime Register
Base Address Table.
TABLE 17-5: RUNTIME REGISTER BASE ADDRESS TABLE
Block Instance
UART
Instance
Number
0
Host
LPC
EC
Address Space
I/O
32-bit internal
address space
Base Address
Programmed BAR
000F_1C00h
The Base Address indicates where the first register can be accessed in a particular address space for a block instance.
TABLE 17-6: RUNTIME REGISTER SUMMARY
DLAB
Note 1:
0
0
1
1
0
x
x
x
x
x
x
x
Offset
0h
0h
0h
1h
1h
02h
02h
03h
04h
05h
06h
07h
Register Name (Mnemonic)
Receive Buffer Register
Transmit Buffer Register
Programmable Baud Rate Generator LSB Register
Programmable Baud Rate Generator MSB Register
Interrupt Enable Register
FIFO Control Register
Interrupt Identification Register
Line Control Register
Modem Control Register
Line Status Register
Modem Status Register
Scratchpad Register
Note 1: DLAB is bit 7 of the Line Control Register.
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DS00001956D-page 279