CS5378 datasheet(83/86 Pages) CIRRUS

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CS5378

DS639F1

21. PIN DESCRIPTION

821

GPIO0

GPIO1

GPIO2

GPIO3

GPIO4:PLL0

GPIO5:PLL1

GPIO6:PLL2

TBSDATA

VDDPAD

GNDPAD

MCLK

MSYNC

MDATA

MFLAG

GPIO7:BOOT

SS:EECS

MOSI

MISO

SCK

DRDY

GNDCORE

VDDCORE

TIMEB

SYNC

RESET

CLK

GNDPLL

VDDPLL

Figure 54. CS5378 Pin Assignments

Name

Number

Type

Description

General Purpose Input / Output

GPIO[0:3]

1, 2, 3, 4

Input / Output

General Purpose I/O.

GPIO[4:6]:PLL[0:2]

5, 6, 7

Input / Output

General Purpose I/O with PLL mode select.

GPIO pins have weak (~100 k

Ω) internal pullups.

PLL mode selection latched immediately after reset.

GPIO7:BOOT

Input / Output

General Purpose I/O with boot mode select.

GPIO pins have weak (~100 k

Ω) internal pullups.

Boot mode selection latched immediately after reset.

PLL[2:0]

Reset Mode

111

32.768 MHz clock input (PLL bypass).

110

1.024 MHz clock input.

101

2.048 MHz clock input.

100

4.096 MHz clock input.

011

32.768 MHz clock input (PLL bypass).

010

1.024 MHz manchester input.

001

2.048 MHz manchester input.

000

4.096 MHz manchester input.

BOOT

Reset Mode

EEPROM boot

Microcontroller boot

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