0154 ; Initialize USART and CTC Channel 0 as Bit Rate Generator
          0155 ; 600=208, 1200=104, 2400=52, 4800=26, 9600=13, 19200=6
3EAA      0156         LD      A,0AAH                  ; 10101010B MIR =
D37D      0157         OUT     (CSTAT),A
3E40      0158         LD      A,40H                   ; 01000000B CIR = Reset 8251
D37D      0159         OUT     (CSTAT),A
3E4E      0160         LD      A,4EH                   ; 01001110B MIR = Clock/16, 8 bit, No Parity, 1 Stop
D37D      0161         OUT     (CSTAT),A
3E37      0162         LD      A,37H                   ; 00110111B CIR = Enable TX & RX, DTR & RTS Low, Reset Errors
D37D      0163         OUT     (CSTAT),A
3E45      0164         LD      A,45H                   ; 01000101B = CCW, Time Constant Follows, Auto Trigger, Falling Edge, Counter
D378      0165         OUT     (CTC0),A
3E0D      0166         LD      A,13                    ; Set up CTC for 9600 bps
D378      0167         OUT     (CTC0),A

J2	DB25
1	1	NC
3	2	TxD
5	3	RxD
7	4	RTS
9	5	CTS
11	6	DSR
13	7	Signal Ground
15	8	DCD
17
19
21
23
25

2
4	15	TXCLK
6
8
10
12
14	20	DTR
16
18	22	RI
20
22	24	TXCLK
24
26

DCE
1 to 20
2 to 19
3 & 4 to 18
5 to 16
10 to 11

DTE