FreeBSD Manual Pages
LPBB(4) Kernel Interfaces Manual LPBB(4) NAME lpbb -- parallel port I2C bit-banging interface SYNOPSIS device iicbus device iicbb device lpbb device iic DESCRIPTION The lpbb driver supports the Philips official I2C parallel bit-banging interface. LS05 pin 14 (Vcc) o ------- | | | +--+--+---------------------+--+--+------------+------+-o 1 | | | | | | | ===.1uF | +5V | -------- [R][R][R] 3x10K 3x10K [R][R][R] LS05 | | | | | | | | | | | pin 7 o-+------+-o 2 | | 12 o-+--+ | | 3|\ 4 | | | (Gnd) | GND | | 17 o-+-----|--|----| >o-------------+--|--|--------------+ | | | | | | |/ 8 /|9 | | 10 /|11 +----+-o 3 | | 15 o-+-----+--|--------------o< |------+--|------o< |----+ | SCL | | | | 1|\ 2 \| | \| | | | 9 o-+--------|----| >o-------------------+--------------+----+-o 4 | | | | |/ 6 /|5 | | SDA | | 11 o-+--------+----------------------------------o< |----+ ------- | 10 o-+-+ \| 4-pin | 13 o-+-+--oGND Connector | 25 o-+-+ ------------------ Part List -------------------------- -------- | 1 - .1 uF capacitor | 6 - 10K 5% resistors | 25-pin male D | 1 - 4-pin connector | 1 - 25-pin male D connector | connector to PC | 1 - 74LS05 open collector hex inverter | printer port ------------------------------------------------------- SEE ALSO iicbb(4), iicbus(4), ppbus(4) HISTORY The lpbb manual page first appeared in FreeBSD 3.0. AUTHORS This manual page was written by Nicolas Souchu. FreeBSD 14.3 October 25, 1998 LPBB(4)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | AUTHORS
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