bridge 1, 1
write 0x3179, 0x7;      // all output bits 1
nop
nop
nop
write 1, 0x3178, 0x7;      // all enable
expect 1, 0x3178, 0x7;      // all enable
write 1, 0x3179, 0x0;      // all 0
write 1, 0x3179, 0x7;      // all 0
write 1, 0x3179, 0x0;      // all 0
write 1, 0x3179, 0x7;      // all 0
bridge 1, 0
reset
reset
reset
nop