Low Power V.32 bis Modem
CMX869
6.7
Rx Data Register
Rx Data Register: 8 or 16-bit read-only.
C-BUS address $E5
This register may be set to operate in 8 or 16-bit mode by b10 of the General Control Register. This setting
should not be changed once data reception has started.
1-character mode (General Control Register b10 = 0).
7
6
5
4
3
2
1
0
Bit:
Received byte/character
2-character mode (General Control Register b10 = 1).
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit:
First received byte/character
Second received byte/character
In Synchronous Rx data mode each byte contains 8 received data bits, b0 of the byte holding the earliest
received bit, b7 the latest.
In Rx Start-Stop modes each byte contains the specified number of data bits from a received character, b0
of the byte holding the first received bit. Unused bits are set to 0.
© 2004 CML Microsystems Plc
29
D/869/4
CMLMICRO [ CML MICROCIRCUITS ]
