CSP Package Information
BC41B143A-ds-002Pd
This material is subject to CSR’s non-disclosure agreement
Production Information
© Cambridge Silicon Radio Limited 2005
Page 11 of 89
Test and Debug
Ball
Pad Type
Description
RESETB
E7
CMOS input with weak
internal pull-up
Reset if low. Input debounced so must be
low for >5ms to cause a reset
SPI_CSB
G6
CMOS input with weak
internal pull-up
Chip select for Serial Peripheral Interface
(SPI), active low
SPI_CLK
G5
CMOS input with weak
internal pull-down
SPI clock
SPI_MOSI
F6
CMOS input with weak
internal pull-down
SPI data input into BlueCore
SPI_MISO
F7
CMOS output, tri-state with
weak internal pull-down
SPI data output from BlueCore
TEST_EN
G7
CMOS input with strong
internal pull-down
For test purposes only (leave unconnected)
PIO Port
Ball
Pad Type
Description
PIO[0]
F3
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[1]
F4
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[2]
G1
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[3]
G2
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[4]
E6
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[5]
F5
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[6]
D7
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[7]
E5
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[8]
E3
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[9]
F1
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[10]
F2
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
AIO[0]
D3
Bi-directional
Programmable input/output line
AIO[2]
C3
Bi-directional
Programmable input/output line