MAX7057ASE+T【PDF 12/20 页】IC TRANSMITTER ASK/FSK 16-SOIC

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300MHz to 450MHz Frequency-Programmable

ASK/FSK Transmitter

12 ______________________________________________________________________________________

Using a byte descriptive notation, the read command

can be viewed as the following sequence, within the

same CS cycle:

With this command, all the registers can be read within

the same cycle of CS. The addresses can be given in

any order.

Read-All: To execute an SPI read-all operation, GPO

must be configured to either a CKOUT_SDO or SDO

function (see Tables 15 and 17 for details).

Using a byte descriptive notation, the read command

can be viewed as the following sequence, within two

CS cycles:

Reset: The MAX7057 can be reset to its power-up state

through the reset command.

Figure 4. SPI Read Command Format

READ ALL COMMAND (0x03)

ADDRESS N

A7 A6 A5 A4 A3 A2 A1 A0

D6 D5 D4 D3 D2 D1 D0

GPO

SDI

SCLK

DATA N

DATA

N + 1

DATA

N + n

GPO

SDI

SCLK

D7 D6 D5 D4 D3 D2 D1 D0

A7 A6 A5 A4 A3 A2 A1 A0 A7

A6 A5 A4 A3 A2 A1 A0

READ COMMAND (0x02)

ADDRESS 0

ADDRESS 1

0x00

ADDRESS

DATA

N - 1

DATA 0

DATA N

Figure 5. SPI Read-All Command Format

SDI : <0x02>

< 0x00 >

GPO: < XX > < XX > < Data 0 > < Data 1 > & < Data N - 1 >

SDI : <0x03>

< XX > < XX > < XX >&< XX >

<Data N> &

GPO:

CS cycle 1

CS cycle 2

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