WT21-A-HCI

WT21-A-HCI Datasheet

WT21 BLUETOOTH HCI MODULE

Part	Datasheet
WT21-A-HCI	WT21-A-HCI (pdf)

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WT21 BLUETOOTH HCI MODULE DATA SHEET Wednesday, 18 September 2013 Version Copyright 2000-2013 Bluegiga Technologies All rights reserved. Bluegiga Technologies assumes no responsibility for any errors which may appear in this manual. Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications detailed here at any time without notice and does not make any commitment to update the information contained here. Bluegiga’s products are not authorized for use as critical components in life support devices or systems. The WRAP is a registered trademark of Bluegiga Technologies The Bluetooth trademark is owned by the Bluetooth SIG Inc., USA and is licensed to Bluegiga Technologies. All other trademarks listed herein are owned by their respective owners. Bluegiga Technologies Oy VERSION HISTORY Version Comment Electrical characteristic added. Some minor updates. Function of the regulator enable pin corrected. Some minor updates. New template Pinout fixed GND pins 1 3 removed, pin 23 grounded . Layout guide updated. Improved dimensions chapter Table 5 fixed pad types Footprint added Footprint fixed. Pin number 3 NC added. Recommended PCB land pattern for WT21-N added, power control and regulation updated. Certification information added Information about qualified antenna types added Minor updates to chapter Physical dimensions corrected UART directions clarified to table 5 Physical dimensions updated and recommended PCB land patterns corrected Table 5 corrected. Layout guide for WT21-N Temperature range MSL updated to MSL1 was MSL3 Bluegiga Technologies Oy TABLE OF CONTENTS 1 Ordering Information 8 2 Pinout and Terminal Description 9 3 Microcontroller, Memory and Baseband Logic 13 AuriStream CODEC 13 AuriStream CODEC Requirements 14 AuriStream Hierarchy 14 Memory Managements Unit 15 Burst Mode Controller 15 Physical Layer Hardware Engine DSP 15 WLAN Coexistence 16 Configurable I/O Parallel Ports 16 4 Clock Generation 17 32kHz External Reference Clock 17 5 Serial Peripheral Interface SPI 18 WT21 Serial Peripheral Interface SPI 18 Instruction Cycle 18 Writing to the Device 18 Reading from the Device 19 Multi-Slave 19 6 Host 20 Host Selection 20 UART Interface 20 UART Configuration While Reset is Active 22 7 CSR Serial Peripheral Interface 23 CSPI Read/Write 23 CSPI Register Write Cycle 24 CSPI Register Read Cycle 24 CSPI Register Burst Write 24 CSPI Register Read Cycle 25 SDIO Interface 26 SDIO/CSPI Deep-Sleep Control Schemes 26 Signaling 26 8 Audio Interfaces 27 PCM Interface 27 PCM Interface Master/Slave 27 Bluegiga Technologies Oy Long Frame 28 Short Frame Sync 29 Multi-Slot Operation 29 GCI Interface 30 Slots and Sample Formats 30 Additional Features 31 PCM Timing Information 32 PCM_CLK and PCM_SYNC Generation 35 PCM Configuration 35 Digital Audio Interface I2S 38 9 Power Control and 41 Power Control and Regulation 41 VREG_ENABLE 41 Digital Pin States on Reset 42 10 Bluetooth Radio 44 Bluetooth 44 RSSI Analogue to Digital Converter 44 Bluetooth Transmitter 44 11 Electrical Characteristics 45 Absolute Maximum Ratings 45 Recommended Operating Conditions 45 Input/Output Terminal Characteristics 45 Linear Voltage 45 Digital 46 Reset 46 32 kHz External Reference 46 Power Consumption 47 12 Physical Dimensions 48 13 Layout Guidelines 51 WT21-A 53 14 Certifications 54 Bluetooth 54 FCC 54 CE 55 Industry Canada IC 55 Bluegiga Technologies Oy Ordering Information WT21-A-HCI Fimrware HCI = HCI firmware HW version A= Chip antenna, extended temperature range RF pin, extended temperature range Product series Bluegiga Technologies Oy Page 8 of 56 Pinout and Terminal Description 8 GND 9 GND 10 GND 11 1V8_OUT 12 VREGIN 13 VREG_ENA 14 PIO1 GND 50 49 GND 48 GND 47 GND 46 GND 45 GND 44 GND 43 RST# 42 SPI_MOSI 41 SPI_CS# 40 SPI_CLK 39 SPI_MISO 38 PCM_IN 37 PCM_OUT 36 PCM_CLK 35 PCM_SYNC 34 VDD_PADS 33 SDIO_CMD 32 SDIO_SD_CS# 31 SDIO_CLK 30 UART_CTS# 29 15 GND 16 GND 17 PIO2 18 PIO3 19 PIO4 20 PIO5 21 PIO7 22 PIO9 23 GND 24 32kHz 25 UART_TX 26 UART_RTS# 27 UART_RX 28 GND NC RST# Figure 1 WT21 pin out PIN NUMBER PAD TYPE Not in use Leave floating or connect to GND Input, weak internal pull- Active low reset. Keep low for >5 ms to cause a reset Table 1 Terminal Descriptions Bluegiga Technologies Oy Page 9 of 56 POWER SUPPLIES VREGIN 1v8_OUT VREG_ENA GND VDD_PADS PIN NUMBER DESCRIPTION

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WT21 BLUETOOTH HCI MODULE

DATA SHEET

Wednesday, 18 September 2013 Version

Copyright 2000-2013 Bluegiga Technologies

All rights reserved. Bluegiga Technologies assumes no responsibility for any errors which may appear in this manual. Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications detailed here at any time without notice and does not make any commitment to update the information contained here. Bluegiga’s products are not authorized for use as critical components in life support devices or systems. The WRAP is a registered trademark of Bluegiga Technologies The Bluetooth trademark is owned by the Bluetooth SIG Inc., USA and is licensed to Bluegiga Technologies. All other trademarks listed herein are owned by their respective owners.

Bluegiga Technologies Oy

VERSION HISTORY

Version

Comment

Electrical characteristic added. Some minor updates.

Function of the regulator enable pin corrected. Some minor updates.

New template

Pinout fixed GND pins 1 3 removed, pin 23 grounded . Layout guide updated.

Improved dimensions chapter

Table 5 fixed pad types

Footprint added

Footprint fixed. Pin number 3 NC added.

Recommended PCB land pattern for WT21-N added, power control and regulation updated. Certification information added

Information about qualified antenna types added

Minor updates to chapter

Physical dimensions corrected

UART directions clarified to table 5

Physical dimensions updated and recommended PCB land patterns corrected

Table 5 corrected.

Layout guide for WT21-N

Temperature range

MSL updated to MSL1 was MSL3

Bluegiga Technologies Oy

TABLE OF CONTENTS
1 Ordering Information 8 2 Pinout and Terminal Description 9 3 Microcontroller, Memory and Baseband Logic 13

AuriStream CODEC 13 AuriStream CODEC Requirements 14 AuriStream Hierarchy 14

Memory Managements Unit 15 Burst Mode Controller 15 Physical Layer Hardware Engine DSP 15 WLAN Coexistence 16 Configurable I/O Parallel Ports 16 4 Clock Generation 17 32kHz External Reference Clock 17 5 Serial Peripheral Interface SPI 18 WT21 Serial Peripheral Interface SPI 18 Instruction Cycle 18

Writing to the Device 18 Reading from the Device 19 Multi-Slave 19 6 Host 20 Host Selection 20 UART Interface 20 UART Configuration While Reset is Active 22 7 CSR Serial Peripheral Interface 23 CSPI Read/Write 23 CSPI Register Write Cycle 24 CSPI Register Read Cycle 24 CSPI Register Burst Write 24 CSPI Register Read Cycle 25 SDIO Interface 26 SDIO/CSPI Deep-Sleep Control Schemes 26 Signaling 26 8 Audio Interfaces 27 PCM Interface 27 PCM Interface Master/Slave 27

Bluegiga Technologies Oy

Long Frame 28

Short Frame Sync 29

Multi-Slot Operation 29

GCI Interface 30

Slots and Sample Formats 30

Additional Features 31

PCM Timing Information 32

PCM_CLK and PCM_SYNC Generation 35

PCM Configuration 35

Digital Audio Interface I2S 38
9 Power Control and 41

Power Control and Regulation 41

VREG_ENABLE 41

Digital Pin States on Reset 42
10 Bluetooth Radio 44

Bluetooth 44

RSSI Analogue to Digital Converter 44

Bluetooth Transmitter 44
11 Electrical Characteristics 45

Absolute Maximum Ratings 45

Recommended Operating Conditions 45

Input/Output Terminal Characteristics 45

Linear Voltage 45

Digital 46

Reset 46
32 kHz External Reference 46

Power Consumption 47
12 Physical Dimensions 48
13 Layout Guidelines 51

WT21-A 53
14 Certifications 54

Bluetooth 54

FCC 54

CE 55

Industry Canada IC 55

Bluegiga Technologies Oy
Ordering Information

WT21-A-HCI

Fimrware HCI = HCI firmware

HW version A=

Chip antenna, extended temperature range RF pin, extended temperature range

Product series

Bluegiga Technologies Oy

Page 8 of 56

Pinout and Terminal Description
8 GND
9 GND
10 GND
11 1V8_OUT
12 VREGIN
13 VREG_ENA 14 PIO1

GND 50 49

GND 48 GND 47 GND 46 GND 45 GND 44 GND 43 RST# 42 SPI_MOSI 41 SPI_CS# 40 SPI_CLK 39 SPI_MISO 38 PCM_IN 37 PCM_OUT 36 PCM_CLK 35 PCM_SYNC 34 VDD_PADS 33 SDIO_CMD 32 SDIO_SD_CS# 31 SDIO_CLK 30 UART_CTS# 29
15 GND 16 GND 17 PIO2 18 PIO3 19 PIO4 20 PIO5 21

PIO7 22

PIO9 23

GND 24
32kHz 25

UART_TX 26

UART_RTS# 27

UART_RX 28 GND

NC RST#

Figure 1 WT21 pin out

PIN NUMBER

PAD TYPE

Not in use

Leave floating or connect to GND

Input, weak internal pull- Active low reset. Keep low for >5 ms
to cause a reset

Table 1 Terminal Descriptions

Bluegiga Technologies Oy

Page 9 of 56

POWER SUPPLIES VREGIN
1v8_OUT

VREG_ENA

GND VDD_PADS

PIN NUMBER DESCRIPTION

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Datasheet ID: WT21-A-HCI 521948