BCM4339 datasheet(78/183 Pages) CYPRESS

No de pièce	BCM4339

Description	Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

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Generic SPI Mode

BCM4339 Preliminary Data Sheet

Broadcom®

November 17, 2014 • 4339-DS106-R

Page 77

Command Structure

The gSPI command structure is 32 bits. The bit positions and definitions are as shown in Figure 30.

Figure 30: gSPI Command Structure

Write

The host puts the first bit of the data onto the bus half a clock-cycle before the first active edge following the CS

going low. The following bits are clocked out on the falling edge of the gSPI clock. The device samples the data

on the active edge.

Write/Read

The host reads on the rising edge of the clock requiring data from the device to be made available before the

first rising clock edge of the clock burst for the data. The last clock edge of the fixed delay word can be used to

represent the first bit of the following data word. This allows data to be ready for the first clock edge without

relying on asynchronous delays.

Read

The read command always follows a separate write to set up the WLAN device for a read. This command differs

from the write/read command in the following respects: a) chip selects go high between the command/address

and the data and b) the time interval between the command/address is not fixed.

0

10

27

11

P a cket length - 11b its *

Ad dres s – 17 bits

F1

F 0

C

A

F unction N o: 00 – F unc 0

01 – F unc 1

10 – F unc 2

11 – F unc 3

C ommand : 0 – R ead

1 – W rite

28

29

30

31

A cce ss : 0 – F ixed add ress

1 – Incremental add res s

* 11’ h0 = 204 8 by tes

0

10

27

11

P a cket length - 11b its *

Ad dres s – 17 bits

F1

F 0

C

A

F unction N o: 00 – F unc

01 – F unc 1: Registers and meories belonging to other blocks in the chip (64 bytes max)

10 – F unc 2: DMA channel 1. WLAN packets up to 2048 bytes.

11 – F unc

C ommand : 0 – R ead

1 – W rite

28

29

30

31

A cce ss : 0 – F ixed add ress

1 – Incremental add res s

* 11’ h0 = 204 8 by tes

BCM_SPID Command Structure

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Fabricant	No de pièce	Fiches technique	Description
Cypress Semiconductor	BCM4339	2Mb / 133P	Single-Chip 5G WiFi IEEE 802.11ac MAC/ Baseband/Radio with Integrated Bluetooth 4.1
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Cypress Semiconductor	BCM43455	2Mb / 159P	Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/ Radio with Integrated Bluetooth 4.1 and FM Receiver
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	CYW4354	13Mb / 165P	Single-Chip 5G Wi-Fi IEEE 802.11ac 2횞2 MAC/Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver
	BCM4354KKWBGT	4Mb / 192P	Single-Chip 5G Wi-Fi IEEE 802.11ac 2횞2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

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