Epson 500 Series S22 Bit mapped configuration register, S23 Bit mapped configuration register, Fax/Modem B-11

S22 Bit mapped configuration register

Bit 01	0 0	Speaker volume low (L0)
	01	Speaker volume low (L1)
	10	Speaker volume medium (default L2)
	11	Speaker volume high (L3)
Bit 23	00	Speaker disabled (M0)
	01	Speaker on until carrier detected (default M1)
	10	Speaker always on (M2)
	11	Speaker on until carrier detected but off during dialing (M3)
Bit 456	000	Select basic result code set (X0)
	100	Select first extended result code set (X1)
	101	Select second extended result code set (X2)
	110	Select third extended result code set (X3)
	111	Select fourth extended result code set (default x4)
Bit 7	0	Make/Break ratio is 39/61 for US (default & P0)
	1	Make/Break ratio is 33/67 for UK/HK (&P1)

S23 Bit mapped configuration register

Bit 0	Unused
Bit 123	000	Communications rate-300 bps
	001	Communications rate-600 bps
	010	Communication rate-1200 bps
	011	Communications rate-2400 bps
	100	Communications rate-4800 bps
	101	Communications rate-9600 bps
Bit 45	00	Even parity selected (AT entered in even parity)
	01	Space parity selected (At entered in space parity)
	10	Odd parity selected (AT entered in odd parity)
	11	Mark parity selected (AT entered in mark parity)
Bit 67	00	No guard tone (default &G0)
	01	550 Hz guard tone (&G2)
	10	1800 Hz guard tone (&G2)
	11	Unused

Fax/Modem B-11