MICRF405 datasheet(17/46 Pages) MICREL

部品番号	MICRF405

部品情報	290MHz-980MHz ISM Band ASK / FSK Transmitter

PDF	46 Pages

Scroll/Zoom	100%

メーカー	MICREL [Micrel Semiconductor]

ホームページ	http://www.micrel.com

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17 / 46 page

Micrel

MICRF405

April 2006

M9999-041906

(408) 955-1690

Figure 7. Sequence of a Typical Packet Transfer.

Programming Summary

• Use SEN, SCK, and SIO to get access to the

control registers in MICRF405.

• SCK is user-controlled.

• Write to the MICRF405 on positive edges

(MICRF405 reads on negative edges).

• Read from the MICRF405 on negative edges

(MICRF405 writes on positive edges)

• Address field is 7 bits long. Enter MSB first.

• R/W bit is “1” for read and “0” for write.

• Address and R/W bit together make 1 octet

• Enter/read MSB in every octet first.

• Always write 8 bits to/read 8 bits from a control

than 8 used bits as well.

• Writing: Bring SEN low, write address and R/W

bit followed by the new values to fill into the

addressed control register(s) and bring SEN

high for loading, i.e. activation of the new control

MICRF405 データシート(PDF) 17 Page - Micrel Semiconductor