Mitsubishi Motors DS5000TK User Manual
Page 34
USER’S GUIDE
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TCON.0:
IT0
“Interrupt 0 Type Select”:
When set to 1, 1–to–0 transitions on INT0 will be used to generate interrupt
requests from this pin. When cleared to 0, INT0 is level–activated.
Initialization:
Cleared to a 0 on any type of reset.
TIMER MODE REGISTER
Label: TMOD
Register Address: 089H
D7
D6
D5
D4
D3
D2
D1
D0
GATE
C/T
M1
M0
GATE
C/T
M1
M0
Bit Description:
TMOD.7 (Timer 1);
TMOD.3 (Timer 0):
GATE
“Gate Control”:
When set to 1 with TRn=1, timer/counter’s input count pulses will only be
delivered while a 1 is present on the INT pin. When cleared to 0, count
pulses will always be received by the timer/counter a long as TRn=1.
Initialization:
Cleared to 0 on any reset.
TMOD.6 (Timer 1);
TMOD.2 (Timer 0)
C/T
“Counter/Timer Select”:
When set to 1, the counter function is selected for the associated timer;
when cleared to 0, the timer function is selected.
Initialization:
Cleared to 0 on any reset.
TMOD.5, TMOD.4 (Timer 1);
TMOD.1, TMOD.0 (Timer 0): M1,M0
“Mode Select”:
These bits select the operating mode of the associated timer/counter as fol-
lows:
M1
M0
0
0
Mode 0: 8 bits with 5–bit prescale
0
1
Mode 1: 16 bits with no prescale
1
0
Mode 2: 8 bits with auto–reload
1
1
Mode 3: Timer 0 – Two 8–bit timers
Timer 1 – Stopped
Initialization:
Cleared to 0 on any reset.