User's Manual

Bluetooth Transmit Data Module
Shanghai Ehong Technologies Inc
3 SPI_MOSI
CMOS input, with weak
internal pull-down
Serial Peripheral Interface data input
4 PIO6
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
5 PIO7
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
6 RESETB
CMOS input with weak
internal pull-up
Reset if low. Input denounced so must be
low for >5ms to cause a reset
7 SPI_CLK
input with weak internal
pull-down
Serial Peripheral Interface clock
8 PCM_CLK
Bi-directional with weak
internal pull-down
Synchronous Data Clock
9 PCM_SYNC
Bi-directional with weak
internal pull-down
Synchronous Data Sync
1
0
PCM_IN
CMOS Input, with weak
internal pull-down
Synchronous Data Input
11
PCM_OUT
CMOS output, tristate, with
weak internal pull-down
Synchronous Data Output
12 VDD_3V3 3V3 power input 3V3 power input
13 GND Ground Ground
14 GND Ground Ground
15 PIO11
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
16 PIO10
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
17 PIO9
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
18 PIO8
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
19 GND Ground Ground
20 UART_RXD
CMOS input with weak
internal pull-down
UART data input
21 UART_TXD
CMOS output, tristate, with
weak internal pull-up
UART data output
22 UART_RTS
CMOS output, tri-state, with
weak internal pull-up
UART request to send active low
23 UART_CTS
CMOS input with weak
internal pull-down
UART clear to send active low