MEC1632 datasheet(63/636 Pages) MICROCHIP

63 / 636 page

 2012-2018 Microchip Technology Inc.

DS00001592B-page 63

MEC1632

5.0

LOGICAL DEVICE CONFIGURATION

5.1

Description

The Configuration of the MEC1632 is very flexible and is based on the configuration architecture implemented in typical

Plug-and-Play components.

The MEC1632 is designed for motherboard designs in which the resources required by their components are known.

With its flexible resource allocation architecture, the MEC1632 allows the BIOS to assign resources at POST.

5.2

Location of Configuration Registers

Configuration Registers for Logical Devices accessible by the Host are located on the LPC SPB in the address range

FF_0000h through FF_FFFFh. All Configuration Registers are located at addresses where address bits 9 and 8 are both

‘1b’ (that is, at offsets 300h through 3FFh from the base of a 1KB address frame). Configuration registers are accessible

by the Embedded Controller with 8-bit, 16-bit or 32-bit accesses. The Host can access the registers only with 8-bit

accesses.

The Configuration Registers for the LPC Logical Device are located on the LPC SPB in the address range FF_3300h

through FF_33F0h. The Global Configuration Registers are located within the Global Configuration Logical Device.

5.3

Logical Devices

Logical devices described in this section are peripherals that are located on the MEC1632 and are accessible to the

Host over the LPC bus.

Each logical device on the MEC1632 can have a set of Runtime Register and a set of Configuration Registers. The dis-

tinction between Runtime and Configuration registers is that the Host can access Runtime Registers by a direct I/O

address, while it can only access Configuration Registers through a configuration port. The Embedded Controller (EC)

can access all Configuration Registers and all Runtime Registers directly. The Logical Device Numbers for the Logical

Devices resident in the MEC1632 are listed in Table 5-14, “MEC1632 Configuration Register Map,” on page 75.

All Configuration and Runtime Registers in the MEC1632 have an assigned AHB address between FF 0000h and

FF FFFFh. Unless indicated otherwise, the EC can issue reads and writes to any register in that AHB address range.

The EC can access 8-bit registers with 8-bit reads and writes, 16-bit registers with either 8-bit or 16-bit reads and writes

and 32-bit registers with 8-bit, 16-bit and 32-bit reads and writes.

TABLE 5-1:

LOGICAL DEVICES

Logical Device

Number

Logical Device

Logical Device CR Map

on Table 5-14

Mailbox Interface

on page 75

Keyboard Controller (8042)

on page 75

ACPI EC Channel 0

on page 75

ACPI EC Channel 1

on page 75

ACPI EC Channel 2

on page 75

ACPI EC Channel 3

on page 75

ACPI PM1

on page 75

UART

on page 75

Legacy (Fast KB)

on page 75

LPC Interface

on page 75

Embedded Flash Interface

on page 77

Flash SPI

on page 77

10h

EM Interface

on page 77

11h

Real Time Clock

on page 77

20h

BIOS Debug Port 0

on page 77

21h

BIOS Debug Port 1

on page 77

3Fh

Global Configuration

on page 77

MEC1632 датащи(PDF) 63 Page - Microchip Technology

MEC1632 датащи(HTML) 63 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL