CSR8635 View Datasheet(PDF) - CSR plc
Part Name
Description
Manufacturer
CSR8635 Datasheet PDF : 105 Pages
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1.2 Device Terminal Functions
Radio
Lead Pad Type
Supply Domain
BT_RF
12 RF
VDD_BT_RADIO
Description
Bluetooth 50Ω transmitter output /
receiver input
Oscillator
Lead Pad Type
Supply Domain
Description
XTAL_IN
19
For crystal or external clock input
Analogue
VDD_AUX
XTAL_OUT
18
Drive for crystal
, 2013 USB
ber 27 USB_DP
eptem USB_DN
Lead Pad Type
56
Bidirectional
55
Supply Domain
VDD_USB
Description
USB data plus with selectable internal
1.5kΩ pull-up resistor
USB data minus
riday, S SPI/PCM Interface
t.com.cn - F SPI_PCM#
Lead Pad Type
Supply Domain
29
Input with weak pull-
down
VDD_PADS_1
Description
SPI/PCM select input:
â– 0 = PCM/PIO interface
â– 1 = SPI
lpoin Note:
xce SPI and PCM1 interfaces are mapped as alternative functions on the PIO port.
ou - e PIO Port
ven.zh PIO[21]
gbo ke PIO[18]
Prepared for qin PIO[17]
Lead Pad Type
Supply Domain
64
Bidirectional with weak
pull-down
VDD_PADS_2
65
Bidirectional with weak
pull-down
VDD_PADS_2
32
Bidirectional with strong
pull-down
VDD_PADS_1
Description
Programmable input / output line 21.
Programmable input / output line 18.
Programmable input / output line 17.
Alternative function:
â– UART_CTS: UART clear to send,
active low
PIO[16]
27
Bidirectional with strong
pull-up
VDD_PADS_1
Programmable input / output line 16.
Alternative function:
â– UART_RTS: UART request to send,
active low
PIO[15]
21
Bidirectional with strong
pull-up
VDD_PADS_1
Programmable input / output line 15.
Alternative function:
â– UART_TX: UART data output
PIO[14]
23
Bidirectional with strong
pull-up
VDD_PADS_1
Programmable input / output line 14.
Alternative function:
â– UART_RX: UART data input
Production Information
© Cambridge Silicon Radio Limited 2013
Confidential Information - This Material is Subject to CSR's Non-disclosure Agreement
Page 14 of 105
CS-303725-DSP5
www.csr.com
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