summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/crystal.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/crystal.c')
-rw-r--r--src/mame/drivers/crystal.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/crystal.c b/src/mame/drivers/crystal.c
index a0025cb88ea..68cddd5e6eb 100644
--- a/src/mame/drivers/crystal.c
+++ b/src/mame/drivers/crystal.c
@@ -1054,7 +1054,7 @@ DRIVER_INIT_MEMBER(crystal_state,evosocc)
The PIC uses a software UART bit banged on a single output pin of the main CPU:
the data port is bit 0x20000000 on the PIO register, the same register where the EEPROM control lines are. The serial data is transmitted at 8 data bits, even parity, 1 stop bit. It's probably
-tricky to get it working properly because it doesn't rely on a clock signal, and so, the pic and main cpu must run in in parallel, and the bit lengths must match. The pic bit delay routine is just a loop.
+tricky to get it working properly because it doesn't rely on a clock signal, and so, the pic and main cpu must run in parallel, and the bit lengths must match. The pic bit delay routine is just a loop.
also it seems that bit 0x40000000 is the PIC reset.
*/