User's Manual

Table Of Contents
SBM2XA-05 Data Sheet
Copyright 2009 SungJin Techwin Co., Ltd..
7
1.5 PIN Description
Terminal
No.
Terminal
Name
Type Description
(1) SPK_R- Analogue (output) Speaker output negative(right Channel)
(2) SPK_R+ Analogue (output) Speaker output positive(right Channel)
(3) AIO[0] Bi-directional Programmable input/output line
(4) AIO[1] Bi-directional Programmable input/output line
(5) VDD_USB VDD (Input) Positive supply for USB ports (3.3V)
(6) USB_DN Bi-directional USB data minus
(7) USB_DP Bi-directional
USB data plus with selectable internal 1.5kΩ pull-up
resistor
(8) PIO[4]
Bi-directional with
programmable strength
internal pull-up/down
PIO or USB on (input senses when VBUS is high,
wakes BlueCore3-Multimedia)
(9) PIO[5]
Bi-directional with
programmable strength
internal pull-up/down
PIO line or chip detaches from USB when this input is
high
(10) PIO[6]
Bi-directional with
programmable strength
internal pull-up/down
PIO line or clock request output to enable external
clock for external clock line
(11) PIO[7]
Bi-directional with
programmable strength
Programmable input/output line or programmable
frequency clock output
(12) GND
GND
GND
(13) UART_TX
CMOS output, tri-state, with
weak internal pull-up
UART data output
(14) UART_RX
CMOS input with weak
internal pull-down
UART data input
(15) PCM_CLK
Bi-directional with weak
internal pull-down
Synchronous data clock
(16) PCM_IN
CMOS input with weak
internal pull-down
Synchronous data input
(17) MIC_L+
Analogue (Input) Microphone Right channel input positive
(18) PCM_SYNC
Bi-directional with weak
internal pull-down
Synchronous data sync
(19) PCM_OUT
CMOS output, tri-state, with
weak internal pull-up
Synchronous data output
(20) MIC_L- Analogue (Input) Microphone Right channel input negative
(21) MIC_R+ Analogue (Input) Microphone Left channel input positive
(22) GND GND GND
(23) MIC_R- Analogue (Input) Microphone Left channel input negative
(24) SPI_MISO
CMOS input with weak
internal pull-down
Serial Peripheral Interface data output
(25) SPI_MOSI
CMOS input with weak
internal pull-down
Serial Peripheral Interface data input
(26) SPI_CSB
CMOS input with weak
internal pull-up
Chip select for Synchronous Serial Interface, active
low
(27) SPI_CLK
CMOS input with weak
internal pull-down
Serial Peripheral Interface clock