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8XC196NP, 80C196NU USER’S MANUAL
1:0 M1:0 Mode Selection
These bits select the communications mode.
M1 M0
00 mode 0
01 mode 1
10 mode 2
11 mode 3
SP_CON (Continued)
Address:
Reset State:
1FBBH
00H
The serial port control (SP_CON) register selects the communications mode and enables or disables
the receiver, parity checking, and nine-bit data transmission. For the 80C196NU, it also enables or
disables the divide-by-two prescaler.
7 0
8XC196NP
——PAR TB8 REN PEN M1 M0
7 0
80C196NU
—PRSPAR TB8 REN PEN M1 M0
Bit
Number
Bit
Mnemonic
Function
†
This bit is reserved on the 8XC196NP. For compatibility with future devices, write zero to this bit.
Figure 8-6. Serial Port Control (SP_CON) Register (Continued)