MEC1322 Datasheet, PDF (181/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
TABLE 14-8: UART BAUD RATES USING CLOCK SOURCE 24MHz_Clk (CONTINUED)
Desired Baud Rate
BAUD_CLOCK_SEL
Divisor Used to Generate
16X Clock
300000
1
5
375000
1
4
500000
1
3
750000
1
2
1500000
1
1
14.10 Configuration Registers
The registers listed in the Configuration 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 the Configuration
Register Base Address Table.
FIGURE 14-2:
Block Instance
UART
UART
CONFIGURATION REGISTER BASE ADDRESS TABLE
Instance
Number
Logical
Device
Number
Host
Address Space
0
7
LPC
Configuration Port
0
EC
32-bit internal
address space
Base Address
INDEX = 00h
400F_1F00h
Each Configuration register access through the Host Access Port is via its LDN and its Host Access Port Index. EC
access is a relative offset to the EC Base Address.
TABLE 14-9:
Offset
30h
F0h
CONFIGURATION REGISTER SUMMARY
Register Name (Mnemonic)
Activate Register
Configuration Select Register
14.10.1 ACTIVATE REGISTER
Offset ^30h
Bits
Description
7:1 Reserved
0 ACTIVATE
When this bit is 1, the UART logical device is powered and func-
tional. When this bit is 0, the UART logical device is powered down
and inactive.
Type
R
R/W
Default
-
0b
Reset
Event
-
RESET
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DS00001719D-page 181