SIO1007 datasheet(14/108 Pages) MICROCHIP

14 / 108 page

SIO1007

DS00002020A-page 14

 2005 - 2015 Microchip Technology Inc.

6.0

SUPER I/O REGISTERS

The address map, shown below in Table 6-1, shows the addresses of the different blocks of the Super I/O immediately

after power up. The base addresses of the following blocks can be moved via the configuration registers: Serial Port

Com 1, Serial Port Com 2, Synchronous Communications Engine (SCE), CIRCC2, Runtime Registers, Configuration,

LPC Docking. Some addresses are used to access more than one register.

6.1

Host Processor Interface (LPC)

The host processor communicates with the SIO1007 through a series of read/write registers via the LPC interface. The

port addresses for these registers are shown in Table 6-1. Register access is accomplished through I/O cycles or DMA

transfers. All registers are 8 bits wide. Section 18.5, "Logical Device Base I/O Address and Range," on page 85 for base

address, activation and power control for each logical device.

Note 1: Refer to the configuration register descriptions for setting the base address.

2: Serial Port COM 2 block provides IR Support (FIR and CIR) but does not have standard 8 pin UART inter-

face.

3: The Runtime Register Block includes all PME, SMI, and GP data registers.

TABLE 6-1:

SUPER I/O BLOCK ADDRESSES

Address

Block Name

Notes

Base+(0-7)

Serial Port Com 1

ACE:Base1+(0-7)

SCE:Base2+(0-7)

Serial Port Com 2

SCE

IR Support

FIR and CIR

Base+(0-7)

CIRCC2

Consumer IR Support NEC PPM and

RC5

Base + (0-F)

Runtime Registers

Base + (0-1)

Configuration

Base + 0

LPC Docking

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