UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 218
UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
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8.3 TIMER/COUNTER 0 CONTROL REGISTERS
(1) Timer control register 0 (TMC0)
178
Remark The OVF0 bit is reset by software only.
The timer/counter 0 TM0 count operation is controlled by the low-order 4 bits in the TMC0 (the high-order 4 bits control the
count operation of the TM3/TM3W of the timer 3).
TMC0 can be read or written to with an 8-bit manipulation instruction or bit manipulation instruction. The format of the TMC0
is shown in Figure 8-2.
RESET input clears TMC0 to 00H.
TMC0
CE3
7
6
0
5
0
Figure 8-2 Timer Control Register 0 (TMC0) Format
BW3
4
CE0
3
CHAPTER 8 TIMER/COUNTER 0
OVF0
2
1
0
0
0
OVF0
Controls count operation of the TM3/TM3W of the
timer 3 (see Figure 11-2).
CE0
0FF5DH
Address
0
1
0
1
TM0 Overflow Flag
No overflow
Overflow (count up from FFFFH to 0000H)
TM0 Count Operation Control
Count operation stopped with count
cleared
Count operation enabled
On Reset
00H
R/W
R/W
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