DS80C390_00 Datasheet, PDF (106/155 Pages) Dallas Semiconductor – High-Speed Microcontroller User’s Guide Supplement

DS80C390 High-Speed Microcontroller User’s Guide Supplement
ADDENDUM TO SECTION 11: PROGRAMMABLE TIMERS
The timers of the DS80C390 are very similar to the those of described in the High-Speed Microcontroller
User’s Guide. The primary changes concern the removal of the PMM2 option and the inclusion of the
frequency multiplier settings. The following figures replace the corresponding figures in Section 11 of the
High-Speed Microcontroller User's Guide. The effect on the timers is summarized in tabular form in
Section 5, EFFECT OF CLOCK MODES ON TIMER OPERATION Table 5- 2.
TIMER/COUNTER 0 AND 1
MODES 0 AND 1
OSC
T0 = P3.4
(T1 = P3.5)
TR0 = TCON.4
(TR1 = TCON.6)
GATE = TMOD.3
(GATE = TMOD.7)
/INT0 = P3.2
(/INT1 = P3.3)
T0M = CKCON.3
(T1M = CKCON.4)
CD1:0
CLK OUT
11
/3,072
anything else /12
0
4X/2X CD1:0 CLK OUT
1
00
/1
0
00
/2
1
x
10
/4
x
11
/1024
C/T = TMOD.2
(C/T = TMOD.6)
0
1
0
/CLK
0
TL0
(TL1)
4
7
00
MODE 0
M1,M0 = TMOD.1, TMOD.0
(M1,M0 = TMOD.5, TMOD.4)
01
MODE 1
TH0
(TH1)
7
TIMER 1 FUNCTIONS
SHOWN IN PARENTHESIS ()
TF0 = TCON.5
(TF1 = TCON.7)
INTERRUPT
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