FTDI BitBang Mode Pin Assign

FT232RLavrdude.conf
TXD 0
RXD 1
RTS 2
CTS 3
DTR 4
DSR 5
DCD 6
RI 7
CB0 8
CB1 9
CB2 10
CB3 11

http://memo.tank.jp/%E9%9B%BB%E5%AD%90%E5%B7%A5%E4%BD%9C/bitbang%E3%83%A9%E3%82%A4%E3%82%BF/breakout-ftdi-bitbang%E3%83%A9%E3%82%A4%E3%82%BF%E8%A3%BD%E4%BD%9C