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Programmable Hardware Manual (PHM)
© Tibbo Technology Inc.
lines. Complement it with terminal block Tibbit
(four terminal blocks) and you have four CPU lines "exposed" and ready to be used.
Note that a CPU I/O line has the voltage swing from 0-3.3V when the line is enabled
(io.enabled= 1- YES). The voltage may be close to 5V when the line is disabled
(io.enabled= 0- NO). This is because the CPU has weak pull-up resistors connected
to 5V.
Combining this Tibbit with
is potentially limited in use because #00-1 doesn't
have dedicated ground or power lines, and Tibbit #21 doesn't have them, either.
Need ground (and power)? Consider replacing #21 with
power), or turn to using Tibbit
ground and power).
LEDs
Four yellow LEDs are connected to four control lines of the CPU (through buffering
gates). LEDs light up for the LOW state of control lines.
7.2.9.2
#00-2, M1S: Three Direct I/O Lines and Ground
Function:
Three directly exposed I/O lines of the microcontroller plus the ground
line
Category:
Blank module
Special needs:
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Power requirements:
5V/20mA
Mates with:
See also: