CSR BlueCore CSR8640 BGA, User Manual

Page: 17 / 110

PIO Port Ball Pad Type Supply Domain Description
PIO[5] J1
Bidirectional with weak
pull-down
VDD_PADS_1
Programmable input / output line 5.
Alternative functions:
■
SPI_CLK: SPI clock
■ PCM1_CLK: PCM1 synchronous
data clock
PIO[4] E1
Bidirectional with weak
pull-down
VDD_PADS_1
Programmable input / output line 4.
Alternative functions:
■
SPI_CS#: chip select for SPI, active
low
■ PCM1_SYNC: PCM1 synchronous
data sync
PIO[3] J5
Bidirectional with weak
pull-down
VDD_PADS_1
Programmable input / output line 3.
Alternative functions:
■
SPI_MISO: SPI data output
■ PCM1_OUT: PCM1 synchronous
data output
PIO[2] H1
Bidirectional with weak
pull-down
VDD_PADS_1
Programmable input / output line 2.
Alternative functions:
■
SPI_MOSI: SPI data input
■ PCM1_IN: PCM1 synchronous data
input
PIO[1] F10
Bidirectional with strong
pull-up
VDD_PADS_2 Programmable input / output line 1.
PIO[0] F9
Bidirectional with strong
pull-up
VDD_PADS_2 Programmable input / output line 0.
AIO[0] D2 Bidirectional VDD_AUX
Analogue programmable input / output
line 0.
Test and Debug Ball Pad Type Supply Domain Description
RST# J3 Input with strong pull-up VDD_PADS_1
Reset if low. Pull low for minimum 5ms to
cause a reset.
Codec Ball Pad Type Supply Domain Description
MIC_AP A9
Analogue in VDD_AUDIO
Microphone input positive, channel A
MIC_AN A10 Microphone input negative, channel A
MIC_BP B7
Analogue in VDD_AUDIO
Microphone input positive, channel B
MIC_BN B8 Microphone input negative, channel B
Advance Information
This material is subject to CSR's non-disclosure agreement
© Cambridge Silicon Radio Limited 2011
Page 17 of 110
CS-209182-DSP1
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CSR8640 BGA
Data Sheet