Atari ST series - Page 214

Rsconf
Rsconf( )
Configure RS-232 Port
Opcode = 15
T h is fu n ctio n le ts yo u c h a n ge th e R S-23 2 serial p o rt p ara m e te rs , s u ch as
co m m u n icatio n s sp e ed , h an d sh ak in g , p arity , a n d so on .
C macro format
in t sp e ed , h a n d sh a k e, u cr, rsr, tsr, scr;
R sco n f(sp ee d , h an d sh a k e, u cr, rsr, trs , scr);
Machine language format
m o v e.w
m o v e .w
m o v e.w
m o v e .w
m o v e .w
m o v e .w
m o v e .w
trap
a d d .l
Inputs
scr
tsr
rsr
u cr
# s c r , - (sp )
# t r s , - (sp )
# r s r , - (sp)
# u c r , - (sp )
# h a n d s h a k e , - (sp )
# s p e e d , - (sp )
# 1 5 , - (sp )
# 1 4
# 1 4 , sp
w o rd
w o rd
w o rd
w o rd
Se ts th e M F P S y n ch ro n o u s C h ara cter
R eg iste r ( - 1 = k eep cu rre n t co n ten ts)
S ets th e M F P T ran sm it S ta tu s R egis ter
( - 1 = k eep cu rre n t co n te n ts).
S ets th e M FP R eceiv e S ta tu s R eg iste r
( - 1 = k eep cu rren t c o n te n ts).
S ets th e 8 -b it M F P U S A R T C on tro l R egis
ter.
T h e 8-b it M FP U SA R T C on tro l R egister:
Bit Function
0 N o t use d
1 P arity ty pe
0 = O d d
1 = E v en
2 P arity en ab le
0 = O ff
2 = O n
3 - 4 A s y n c sta rt an d sto p b its
Bits 4 3 N u m b er o f star t an d sto p bits
0 0 N o s ta rt o r sto p bits (sy n ch ro n o u s)
O i l s tart bit, 1 s to p bit
1 0 1 start bit, 1 1/2 sto p bits
1 1 1 s ta rt b it, 2 sto p bits
206