sx1441 Semtech Corporation, sx1441 Datasheet - Page 26

• Manufacturer Part Number: sx1441
• Description: Bluetooth V1.2 Soc For Voice And Data Applications With Dsp Capabilities
• Manufacturer: Semtech Corporation

Personal Area Network
Table 25 summarizes which peripherals use the outputs of the low prescaler. The frequencies of all outputs of the
low prescaler are directly proportional to the frequency of the clock source of the low prescaler.
© Semtech 2006
Low prescaler output
ck32kHz
ck2kHz
ck1kHz
RCCoarseMSB &
RCCoarseLSB &
RCDivFactor &
[0x0360]hex
[0x0361]hex
[0x038e]hex
[0x0390]hex
[0x039d]hex
[0x03a0]hex
[0x03ab]hex
[0x03b0]hex
[0x03b9]hex
[0x03d0]hex
[0x03d6]hex
[0x03e0]hex
[0x03e5]hex
[0x0400]hex
[0x0402]hex
[0x040a]hex
[0x0410]hex
[0x0419]hex
[0x0420]hex
[0x0427]hex
[0x0430]hex
[0x0435]hex
[0x0440]hex
[0x0444]hex
[0x0450]hex
[0x0452]hex
[0x0460]hex
[0x0461]hex
[0x048e]hex
[0x0490]hex
[0x049d]hex
[0x04a0]hex
[0x04ab]hex
[0x04b0]hex
[0x04b9]hex
[0x03c0]hex
[0x03c8]hex
[0x04c0]hex
[0x03f0]hex
[0x03f3]hex
RCFine
Peripherals
application UART, Bluetooth sequencer UART, counter/timer, port PA debouncer
counter/timer
counter/timer, port PA debouncer
Selected high
prescaler tap
ckRCext / 16
ckRCext / 32
ckRCext / 64
ckRCext / 32
ckRCext / 64
ckRCext / 32
ckRCext / 64
ckRCext / 32
ckRCext / 64
ckRCext / 32
ckRCext / 64
ckRCext / 32
ckRCext / 64
ckRCext / 32
ckRCext / 64
ckRCext / 32
ckRCext / 64
ckRCext / 16
ckRCext / 16
ckRCext / 16
ckRCext / 16
ckRCext / 16
ckRCext / 16
ckRCext / 16
ckRCext / 32
ckRCext / 16
ckRCext / 32
ckRCext / 16
ckRCext / 32
ckRCext / 16
ckRCext / 32
ckRCext / 16
ckRCext / 4
ckRCext / 8
ckRCext / 8
ckRCext / 8
ckRCext / 8
ckRCext / 8
ckRCext / 8
ckRCext / 8
Table 24 – ck32kHz frequency selector
26
RCCoarseMSB &
RCCoarseLSB &
RCDivFactor &
[0x06d0]hex
[0x06d6]hex
[0x06e0]hex
[0x06e5]hex
[0x0700]hex
[0x0702]hex
[0x070a]hex
[0x0710]hex
[0x0719]hex
[0x0720]hex
[0x0727]hex
[0x0730]hex
[0x0735]hex
[0x0740]hex
[0x0744]hex
[0x0750]hex
[0x0752]hex
[0x0760]hex
[0x0761]hex
[0x078e]hex
[0x0790]hex
[0x079d]hex
[0x07a0]hex
[0x07ab]hex
[0x07b0]hex
[0x07b9]hex
[0x07d0]hex
[0x07d6]hex
[0x07e0]hex
[0x07e5]hex
[0x06c8]hex
[0x07c0]hex
[0x07c8]hex
[0x06f0]hex
[0x06f3]hex
[0x07f0]hex
[0x07f3]hex
RCFine
SX1441 – Bluetooth® 1.2 SoC
Selected high
prescaler tap
ckRCext / 8
ckRCext / 4
ckRCext / 8
ckRCext / 4
ckRCext / 8
ckRCext / 4
ckRCext / 8
ckRCext / 0
ckRCext / 1
ckRCext / 2
ckRCext / 1
ckRCext / 2
ckRCext / 1
ckRCext / 2
ckRCext / 1
ckRCext / 2
ckRCext / 1
ckRCext / 2
ckRCext / 1
ckRCext / 2
ckRCext / 1
ckRCext / 2
ckRCext / 4
ckRCext / 2
ckRCext / 4
ckRCext / 2
ckRCext / 4
ckRCext / 2
ckRCext / 4
ckRCext / 2
ckRCext / 4
ckRCext / 2
ckRCext / 4
ckRCext / 2
ckRCext / 4
ckRCext / 2
ckRCext / 4
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Data Sheet