wm8321 Wolfson Microelectronics plc, wm8321 Datasheet - Page 2

• Manufacturer Part Number: wm8321
• Description: Processor Power Management Subsystem
• Manufacturer: Wolfson Microelectronics plc

WM8321
BLOCK DIAGRAM
w
PROGVDD
XOSCGND
CLKOUT
DBGND
DBVDD
GPIO10
GPIO11
GPIO12
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO1
GPIO2
CLKIN
LED1
LED2
XTO
ON
XTI
Clocking and Auxiliary ADC Functions
Reset Controller
System
Status
Driver
32.768kHz
Function Pin
Oscillator
(test function only)
Interrupt and
LED
Controller
CHIP temperature
(GPIO)
Multi-
Application Processor
Register Map and
Primary Control
Interface
Management
Interface
AP Interface, GPIOs and PM Control
Control
Power
Real-Time
Clock
Monitoring
1 to 4MHz
Oscillator
Bootstrap
Bootstrap
OTP NVM
Unique ID
ADC
EEPROM
PM Sub-
Aux
Dynamic
Interface
Config &
System
Wake-Up
Timer
RC
`
Power Management
0.6 to 1.8V
DC-DC1
W
1.25A
Buck
DVS
WM8321
0.6 to 1.8V
DC-DC2
1.25A
Buck
DVS
0.85 to 3.4V
DC-DC3
LDO 6 Standard LDO
0.9 to 3.3V
LDO 8 Analogue LDO
1.0 to 3.5V
LDO 9 Analogue LDO
1.0 to 3.5V
LDO 10 Analogue LDO
1.0 to 3.5V
LDO 1 Standard LDO
0.9 to 3.3V
LDO 2 Standard LDO
0.9 to 3.3V
LDO 3 Standard LDO
0.9 to 3.3V
LDO 4 Standard LDO
0.9 to 3.3V
LDO 5 Standard LDO
0.9 to 3.3V
LDO 7 Analogue LDO
1.0 to 3.5V
LDO 11 Alive LDO
0.8 to 1.55V
LDO 12 Internal LDO
2.1V
LDO 13 Internal LDO
2.5V
Backup Battery Charger
Buck
Dual Mode Control
Internal Power Source
1A
Management
References
2mA
20mA
Product Brief, April 2010, Rev 1.2
0.85 to 3.4V
300mA
200mA
200mA
100mA
100mA
100mA
200mA
200mA
150mA
150mA
10mA
DC-DC4
Buck
1A
VREFC
IREFR
LDO1VOUT
LDO1_2VDD
LDO2VOUT
LDO3VDD
LDO3VOUT
LDO4VDD
LDO4VOUT
LDO5VDD
LDO6VDD
LDO6VOUT
LDO7VOUT
LDO7_8VDD
LDO8VOUT
LDO9VOUT
LDO9_10VDD
LDO10VOUT
LDO11VOUT
LDO13VOUT
LDO5VOUT
LDO12VOUT
BACKUPVDD
PVDD
GND
Product Brief
2