BCM4319 Preliminary Data Sheet
Table of Contents
Table of Contents
About This Document ................................................................................................................................ 13
Purpose and Audience.......................................................................................................................... 13
Acronyms and Abbreviations................................................................................................................. 13
Document Conventions......................................................................................................................... 13
Technical Support ...................................................................................................................................... 13
Section 1: Overview .......................................................................................................... 14
Overview...................................................................................................................................................... 14
Mobile Phone Usage Model....................................................................................................................... 15
Section 2: Power Supplies and Management ................................................................. 16
Power Management.................................................................................................................................... 16
Voltage Regulators..................................................................................................................................... 16
Power Supply Topology............................................................................................................................. 17
PMU Sequencer .......................................................................................................................................... 18
Low-Power Shutdown................................................................................................................................ 19
Section 3: Frequency References.................................................................................... 20
Crystal Interface and Clock Generation ................................................................................................... 20
Crystal Oscillator........................................................................................................................................ 21
External Frequency Reference.................................................................................................................. 22
Frequency Selection .................................................................................................................................. 22
Frequency Trimming.................................................................................................................................. 23
Section 4: Global Functions............................................................................................. 24
General-Purpose Input/Output Interface.................................................................................................. 24
UART Interface............................................................................................................................................ 24
One-Time-Programmable (OTP) Memory................................................................................................. 24
Bluetooth Coexistence Interface............................................................................................................... 25
JTAG Interface............................................................................................................................................ 25
Section 5: USB 2.0 and SDIO Interfaces.......................................................................... 26
USB 2.0 Device Core .................................................................................................................................. 26
SDIO V2.0 .................................................................................................................................................... 27
gSPI.............................................................................................................................................................. 28
SPI Protocol .......................................................................................................................................... 28
Command Structure....................................................................................................................... 30
Write............................................................................................................................................... 30
Write-Read..................................................................................................................................... 30
Read............................................................................................................................................... 30
Status............................................................................................................................................. 31
Broadcom®
April 2, 2014 • 4319-DS05-R
Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/Radio
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