BLUE CHIP Beta H Series, Руководство пользователя, Страница: 18 / 31

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Standard Connector PCBs
Screw Terminal version
For users who prefer screw terminal connections we offer dual 25 way rows of 3.5mm pitch connectors. Due
to the limited space available we have chosen to mark the connections using the upper and lower case
alphabet rather than numbers.
Please see below for the connection details (note that
identification):
A B C D E F G H I J
a b c d e f g
Pin Signal Comment
A RTC_BAT Nominal 3.6 volts DC for
Real Time Clock
B VCC_3V 3 volts DC
C 0 volts
D BOOT_MODE#
E SLEEP_RQ# Apply logic low to reset
the unit
F RESET# Apply logic low to reset
the unit
G PWROFF# Apply logic low to power
down the unit
H 0 volts
I SPI_SIMO SPI – Output when
Master
J SPI_CLK SPI Clock
K SPI SOMI SPI – Input when Master
L 0 volts
M GPIO 1 GPIO signal –
N GPIO 2 GPIO signal –
O GPIO 3 GPIO signal –
P GPIO 4 GPIO signal –
Q GPIO 5 GPIO signal –
R GPIO 6 GPIO signal –
S GPIO 7 GPIO signal –
T GPIO 8 GPIO signal –
U GPIO 9 GPIO signal –
V GPIO 10 GPIO signal –
W GPIO 11 GPIO signal –
X GPIO 12 GPIO signal –
Y 0 volts
Beta Touch Computer
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Standard Connector PCBs
For users who prefer screw terminal connections we offer dual 25 way rows of 3.5mm pitch connectors. Due
the limited space available we have chosen to mark the connections using the upper and lower case
Please see below for the connection details (note that we have underlined the lower case characters
A B C D E F G H I J K L M N O P Q R S T U V W X Y
g h i j k l m n o p q r s t u v w x y
Pin Signal Comment
Nominal 3.6 volts DC for
Real Time Clock a VIN 5 volts Power INPUT
with the main power in
connector on HB5
b 0 volts
c I2C SDA I2C Data at a 3 volts level
d I2C SCL I2C Clock at a 3 volts level
Apply logic low to reset e 0 volts
Apply logic low to reset f CRX3_N COM Port 3 Receive
Apply logic low to power
down the unit g CRX3_P COM Port 3 Receive
h CTX3_N COM Port 3 Transmit
/ COM 3 RS232 Receive
Output when i CTX3_P COM Port 3 Transmit
COM 3 RS232 Transmit
j 0 volts
Input when Master k COM2_RX RS232 Port 2 Receive
l COM2_TX RS232 Port 2 Transmit
– 3 volts level m 0 volts
– 3 volts level n COM1_RX RS232 Port 1 Receive
– 3 volts level o COM1_TX RS232 Port 1 Transmit
– 3 volts level p 0 volts
– 3 volts level q SPEAKER_L Audio speaker output
– 3 volts level r SPEAKER_H Audio speaker output
– 3 volts level s 0 volts
– 3 volts level t LINEIN_L Audio line in – left
– 3 volts level u LINEIN_R Audio line in – right channel
– 3 volts level v 0 volts
– 3 volts level w LINEOUT_L Audio line out – left channel
– 3 volts level x LINEOUT_R Audio line out – right channel
y 0 volts
Beta Touch Computer
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For users who prefer screw terminal connections we offer dual 25 way rows of 3.5mm pitch connectors. Due
the limited space available we have chosen to mark the connections using the upper and lower case
characters to help
INPUT – in parallel
with the main power in
connector on HB5
I2C Data at a 3 volts level
I2C Clock at a 3 volts level
COM Port 3 Receive – Negative
COM Port 3 Receive – Positive
COM Port 3 Transmit – Negative
/ COM 3 RS232 Receive
COM Port 3 Transmit – Positive /
COM 3 RS232 Transmit
RS232 Port 2 Receive
RS232 Port 2 Transmit
RS232 Port 1 Receive
RS232 Port 1 Transmit
Audio speaker output – Negative
Audio speaker output – Positive
left channel
right channel
left channel
right channel