Datasheet

ADuC7128/ADuC7129
Rev. 0 | Page 78 of 92
Table 113. T2CON MMR Bit Designations
Bit Value Description
31:11 Reserved.
Clock Source Select.
00 Core Clock (Default).
01 Internal 32.768 kHz Oscillator.
10 External 32.768 kHz Watch Crystal.
10:9
11 External 32.768 kHz Watch Crystal.
8 Count Up.
Set by user for Timer2 to count up.
Cleared by user for Timer2 to count down (default).
7 Timer2 Enable Bit.
Set by user to enable Timer2.
Cleared by user to disable Timer2 (default).
6 Timer2 Mode.
Set by user to operate in periodic mode.
Cleared by user to operate in free-running mode (default).
Format.
00 Binary (Default).
01 Reserved.
10 Hours:Minutes:Seconds:Hundredths: 23 Hours to 0 Hours.
5:4
11 Hours:Minutes:Seconds:Hundredths: 255 Hours to 0 Hours.
Prescaler.
0000 Source Clock/1 (Default).
0100 Source Clock/16.
1000 Source Clock/256. This setting should be used in conjunction with Timer2 formats 1,0 and 1,1.
3:0
1111 Source Clock/32,768.