BlueChip HB5, Техническое руководство пользователя

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31 0 volts
33 CTX3_P COM Port 3 Transmit
COM 3 RS232 Transmit
level for RS422/485, RS232
levels for RS232
35 CTX3_N COM Port 3 Transmit
/ COM 3 RS232 Receive
level for RS422/485, RS232
levels for RS232
37 CRX3_P COM Port 3 Receive
3volts level for RS422/485,
RS232 levels for RS232
39 CRX3_N COM Port 3 Receive
level for RS422/485, RS232
levels for RS232
41 0 volts
43 I2C SCL I2C Clock at a 3 volts level
45 I2C SDA I2C Data at a 3 volts level
47 0 volts
49 VIN 5 volts Power INPUT
with the main power in
connector on HB5
Notes:
1. The details of the connector are:
a. 50 way 2mm pitch socket.
2. The voltage level of all the GPIO lines can be changed from 3 volts to 1.8 volts in the kernel.
HB5 Touch Computer
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32 SPI CLK SPI Clock
Transmit – Positive /
COM 3 RS232 Transmit – 3volts
level for RS422/485, RS232
34 SPI SIMO SPI – Output when
COM Port 3 Transmit – Negative
/ COM 3 RS232 Receive – 3volts
level for RS422/485, RS232 36 0 volts
COM Port 3 Receive – Positive –
3volts level for RS422/485,
RS232 levels for RS232 38 PWROFF# Apply logic low to power
down the unit
COM Port 3 Receive – 3volts
level for RS422/485, RS232 40 RESET# Apply logic low to reset
the unit
42 SLEEP RQ#
Apply logic low while the
system in operational to
signal that the OS should
go into suspend. Apply
logic low while the system
in suspend wake up the
system.
I2C Clock at a 3 volts level 44 BOOT MODE#
Apply logic low during
power up to put the unit
into USB engineering
mode.
I2C Data at a 3 volts level 46 0 volts
48 VCC 3 volts
INPUT – in parallel
with the main power in
connector on HB5
50 RTC_BAT Nominal 3.6 volts DC for
Real Time Clock
The details of the connector are:
50 way 2mm pitch socket.
The voltage level of all the GPIO lines can be changed from 3 volts to 1.8 volts in the kernel.
Touch Computer
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Output when Master
Apply logic low to power
down the unit
Apply logic low to reset
Apply logic low while the
system in operational to
signal that the OS should
go into suspend. Apply
while the system
in suspend wake up the
Apply logic low during
power up to put the unit
into USB engineering
Nominal 3.6 volts DC for
Real Time Clock
The voltage level of all the GPIO lines can be changed from 3 volts to 1.8 volts in the kernel.