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Rf22 – Rainbow Electronics RF22 User Manual

Page 89

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RF22

Version: 0.1 Date: 12/23/2008

Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com

89

Register 79h. Frequency Hopping Channel Select

Bit

D7

D6

D5

D4

D3

D2

D1

D0

Name

fhch[7:0]

Type R/W

Reset value = 00000000

Bit

Name

Function

7:0

fhch[7:0]

Frequency Hopping Channel Number.

Register 7Ah. Frequency Hopping Step Size

Bit

D7

D6

D5

D4

D3

D2

D1

D0

Name fhs[7:0]

Type R/W

Reset value = 00000000

Bit

Name

Function

7:0

fhs[7:0]

Frequency Hopping Step Size in 10 kHz Increments.
See formula for the nominal carrier frequency at "Register 76h. Nominal Carrier Frequency".

Register 7Ch. TX FIFO Control 1

Bit

D7

D6

D5

D4

D3

D2

D1

D0

Name

Reserved

txafthr[5:0]

Type

R/W

R/W

Reset value = 00110111

Bit

Name

Function

7:6

Reserved

Reserved.

5:0

txafthr[5:0]

TX FIFO Almost Full Threshold.

Register 7Dh. TX FIFO Control 2

Bit

D7

D6

D5

D4

D3

D2

D1

D0

Name Reserved

txfaethr[5:0]

Type

R/W

R/W

Reset value = 00000100

Bit

Name

Function

7:6

Reserved

Reserved.

5:0

txfaethr[5:0]

TX FIFO Almost Empty Threshold.

Register 7Eh. RX FIFO Control

Bit

D7

D6

D5

D4

D3

D2

D1

D0

Name Reserved

rxafthr[5:0]

Type

R/W

R/W

Reset value = 00110111

Bit

Name

Function

7:6

Reserved

Reserved.

5:0

rxafthr[5:0]

RX FIFO Almost Full Threshold.