DS80C390_00 Datasheet, PDF (108/155 Pages) Dallas Semiconductor – High-Speed Microcontroller User’s Guide Supplement

DS80C390 High-Speed Microcontroller User’s Guide Supplement
TIMER/COUNTER 2
CLOCK-OUT MODE
(/RL2 = 0)
OSC
DIVIDE
BY 2
C/T2 =
T2CON.1
=0
T2 = P1.4
F_OUT =
(Ocsillator Frequency) /
(4 * (65536 - RLOADH, RLOADL))
T2OE =
T2MOD.1
T2EX = P1.5
EXEN2 = T2CON.3
TR2 =
T2CON.2
0
78
15
TL2
TH2
RLOADL
RLOADH
0
78
15
DIVIDE
BY 2
EXF2 =
T2CON.6
TIMER 2
INTERRUPT
TIMER/COUNTER 2
BAUD RATE GENERATOR MODE
/RL2(T2CON.0) = 0; RCLK(T2CON.5) = 1 or TCLK(T2CON.4) = 1
OSC
4X/2X CD1:0 CLK OUT
1
00
/2
0
00
/2
x
10
/2
x
11
/512
T2 = P1.4
TR2 = T2CON.2
C/T2 = T2CON.1
0
/CLK 0
78
TL2
TH2
1
TIMER 1
OVERFLOW
DIVIDE
BY 2
SMOD1 =
PCON.7
0
1
RCLK =
15
T2CON.5
1
0
TCLK =
T2CON.4
DIVIDE
BY 16
T2EX = P1.5
EXEN2 = T2CON.3
RLOADL
RLOADH
0
78
15
1
0
EXF2 =
T2CON.6
TIMER 2
INTERRUPT
DIVIDE
BY 16
Serial
Port 0 Rx
CLOCK
Serial
Port 0 Tx
CLOCK
108 of 155