MEC1322 datasheet(248/456 Pages) MICROCHIP

248 / 456 page

MEC1322

DS00001719D-page 248

 2014 - 2015 Microchip Technology Inc.

Note 1:

The value of the Pin Control Register 2 for each pin is not shown in the tables above. The default value can

be determined by the current value shown in the “Default Operation” column of the Multiplexing Tables in

Section 1.5.2, "Multiplexing Tables," on page 20 as follows:

2mA: 00000000h

4mA: 00000010h

8mA: 00000020h

12mA: 00000030h

The default slew rate is slow.

The GPIO041 pin defaults to output low. This pin must be reprogrammed to the GPIO function upon power-

up.

20.7

Pin Multiplexing Control

Pin multiplexing depends upon the Mux Control bits in the Pin Control Register. There is a Pin Control Register for

each GPIO signal function. TABLE 20-5: shows default of the register for each GPIO pin.

The registers listed in the Register Summary table are for a single instance of the MEC1322. The addresses of each

Address Table.

Note 20-1

The Base Address indicates where the first register can be accessed in a particular address space

for a block instance.

Note 20-2

The GPIO registers may be accessed by the LPC Host via the EMI block via GPIO commands or by

direct access if enabled by firmware. See the firmware documentation for a description of this access

method.

TABLE 20-6:

Instance Name

Instance

Number

Host

Address Space

Base Address (

Note 20-1)

GPIO

LPC

I/O

Note 20-2

32-bit internal

address space

4008_1000h

TABLE 20-7:

Offset

000h - 01Ch

GPIO000-GPIO007 Pin Control Register

020h - 03Ch

GPIO010-GPIO017 Pin Control Register

040h - 05Ch

GPIO020-GPIO027 Pin Control Register

060h - 078h

GPIO030-GPIO036 Pin Control Register

080h - 09Ch

GPIO040-GPIO047 Pin Control Register

0A0h - 0BCh

GPIO050-GPIO057 Pin Control Register

0C0h - 0DCh

GPIO060-GPIO067 Pin Control Register

100h - 11Ch

GPIO100-GPIO107 Pin Control Register

120h - 13Ch

GPIO110-GPIO117 Pin Control Register

140h - 15Ch

GPIO120-GPIO127 Pin Control Register

160h - 178h

GPIO130-GPIO136 Pin Control Register

180h - 19Ch

GPIO140-GPIO147 Pin Control Register

1A0h - 1BCh

GPIO150-GPIO157 Pin Control Register

1C0h - 1D4h

GPIO160-GPIO165 Pin Control Register

200h - 210h

GPIO200-GPIO204 Pin Control Register

218h

GPIO206 Pin Control Register

220h - 224h

GPIO210-GPIO211 Pin Control Register

280h

(Note 20-3)

Output GPIO[000:036]

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