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-DIO lines default to tri-state at power-up
-Transmit Enable (i.e. DIO_15 on third uart) is an output, high when
tranmitter is shifting, for RS-485 half duplex function.
Power Consumption (5V power supply)
Current CPU Ethernet TS-9441
0.35A 200Mhz ON+connected no
0.36A 200Mhz ON+connected yes
0.29A 200Mhz ON+disconnected yes
0.25A 200Mhz OFF yes
0.20A 166Mhz OFF yes
0.16A 41.5Mhz OFF yes
0.20A 41.5Mhz ON+disconnected yes
0.27A 41.5Mhz ON+connected yes
0.10A 14.7Mhz OFF yes
TS-7400 requires 450mW MINIMUM, 1750mW at FULL
50mW (0.01A) TS-9441
350mW (0.07A) Ethernet connection
200mW (0.04A) Ethernet PHY
250mW (0.05A) 166->200Mhz
200mW (0.04A) 41.5->166Mhz
300mW (0.06A) 14.7->41.5Mhz
which implies the following power above minimum:
- 850mW for Ethernet to be working usefully (41.5Mhz minimum CPU speed)
- 750mW for 14.7->200Mhz
get the current direction (0=input,1=output) of DIO #n (n in 0..15)
dio_dir_set n dir
set the direction of DIO #n to the specified direction (0=input,1=output)
get the current value (0=Low,1=High) of DIO #n
dio_data_set n val
set the current value (0=Low,1=High) of DIO #n
(specified pin should be set to be an output already)
call this function to turn the USB ports on and initialize them
call this function to turn off the USB ports
prints the number of USB ports on the board. this may be greater then
the actual number of physical ports. the first port is port 0.
prints '1' if something is plugged into the specified port, or '0' otherwise.
turns off the ethernet port and phy
turns on the ethernet port and phy
sets the state of the green LED (0=OFF,1=ON)
sets the state of the red LED (0=OFF,1=ON)
set the CPU and bus speed to their maximum (normal) values,
set the CPU speed to 166Mhz and the bus speed to 66Mhz.
set the CPU speed and bus speed to 41.5Mhz. This is the slowest speed
that Ethernet will work at.
set the CPU and bus speed to their minimum values (14.7456Mhz)
returns the current Celsius temperature reading from the TMP124 chip.