WM8321 Datasheet, PDF (10/253 Pages) Wolfson Microelectronics plc – Processor Power Management Subsystem

WM8321
PIN
NAME
TYPE
Processor Interface and IC Control
W9
¯O¯N¯
Digital Input
B10
R¯¯E¯S¯E¯T¯
Digital I/O
A11
I¯R¯Q¯
Digital Output
E1
CIFMODE
Digital Input
D2
SDOUT1
Digital Output
B9
SCLK1
Digital Input
A9
SDA1
Digital I/O
A10
C¯¯S
Y10
SCLK2
W10
SDA2
B11
F1
OTP Memory
Y3
DBVDD1
DBVDD2
PROGVDD
Digital Input
Digital I/O
Digital I/O
Supply
Supply
Supply
POWER
DOMAIN
VPMIC
DBVDD
DBVDD
DBVDD
DBVDD
VPMIC
DESCRIPTION
Production Data
ON Request Pin
(Internal pull-up)
System Reset Input and Open Drain Output.
(Internal pull-up)
PMIC Interrupt Flag Output.
Configurable Open Drain / CMOS mode.
(Internal pull-up in Open Drain mode.)
Primary Control Interface Mode Select:
0 = I²C Compatible Control Interface Mode
1 = SPI Compatible Control Interface Mode
SPI Compatible Control
Interface Mode
I²C Compatible Control
Interface Mode
Control Interface Serial
Data Out.
Open Drain output;
external 4.7kΩ pull-up
recommended.
No Function
Control Interface Serial
Clock
Control Interface Serial
Clock
Control Interface Serial
Data In
Control Interface Serial
Data Input and Open
Drain Output.
External 4.7kΩ pull-up
recommended.
(Output can extend above
DBVDD domain.)
Control Interface Chip
Select
I²C Address Select:
0 = 68h
1 = 6Ch
Control Interface Serial Clock for external
InstantConfig^TM EEPROM (ICE)
(Internal pull-down)
Control Interface Serial Data to/from external
InstantConfig^TM EEPROM (ICE)
(Internal pull-down)
Digital Buffer Supply
Digital Buffer Supply
High-voltage input for OTP programming.
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PD, February 2012, Rev 4.0
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