KS57C2308/P2308/C2316/P2316 TIMERS and TIMER/COUNTERS
11-11
Table 11-4. TC0 Register Overview
Register
Name Type Description Size RAM
Address Addressing
Mode Reset
Value
TMOD0 Control Controls TC0 enable/disable (bit
2); clears and resumes counting
operation (bit 3); sets input
clock and clock frequency (bits
6–4)
8-bit F90H–F91H 8-bit write-only;
(TMOD0.3 is
also 1-bit
writeable)
"0"
TCNT0 Counter Counts clock pulses matching
the TMOD0 frequency setting 8-bit F94H–F95H 8-bit
read-only "0"
TREF0 Reference Stores reference value for the
timer/counter 0 interval setting 8-bit F96H–F97H 8-bit
write-only FFH
TOE0 Flag Controls timer/counter 0 output
to the TCLO0 pin 1-bit F92H.2 1-bit
write-only "0"
Clock
Selector
TCNT0 8-Bit
Comparator
TOL0
IRQT0
TMOD0.7
TMOD0.6
TMOD0.5
TMOD0.4
TMOD0.3
TMOD0.2
TMOD0.1
TMOD0.0
TREF0
Clear
Inverted
Clear
SETClear
Clocks
(fxx/2 , fxx/2 , fxx/2 , fxx/2 )
10 8 6
88
8
TCLO0
TCL0
Serial I/O
4
P2.0 LatchPM2 TOE0
P1.3
Figure 11-2. TC0 Circuit Diagram