6 x 6mm VFBGA Package Information
BC41B143A-ds-001Pe
This material is subject to CSR’s non-disclosure agreement
Production Information
© Cambridge Silicon Radio Limited 2005
Page 11 of 102
Test and Debug
Ball
Pad Type
Description
RESET
C7
CMOS input with weak
internal pull-down
Reset if high. Input debounced, so must be
high for >5ms to cause a reset
RESETB
D8
CMOS input with weak
internal pull-up
Reset if low. Input debounced, so must be
low for >5ms to cause a reset
SPI_CSB
C9
CMOS input with weak
internal pull-up
Chip select for Serial Peripheral Interface,
active low
SPI_CLK
C10
CMOS input with weak
internal-pull-down
Serial Peripheral Interface clock
SPI_MOSI
C8
CMOS input with weak
internal pull-down
Serial Peripheral Interface data input
SPI_MISO
B9
CMOS output, tri-state with
weak internal pull-down
Serial Peripheral Interface data output
TEST_EN
C6
CMOS input with strong
internal pull-down
For test purposes only (leave unconnected)
PIO Port
Ball
Pad Type
Description
PIO[2]
B3
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[3]
B4
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[4]
E8
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line or optionally
BT_Priority/Ch_Clk output for co-existence
signalling
PIO[5]
F8
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line or optionally
BT_Active output for co-existence signalling
PIO[6]
F10
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line or optionally
WLAN_Active/Ch_Data input for
co-existence signalling
PIO[7]
F9
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[8]
C5
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[9]
C3
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[10]
C4
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[11]
E3
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
AIO[0]
H4
Bi-directional
Programmable input/output line
AIO[1]
H5
Bi-directional
Programmable input/output line
AIO[2]
J5
Bi-directional
Programmable input/output line
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