UPD78F9418A NEC, UPD78F9418A Datasheet - Page 118

• Manufacturer Part Number: UPD78F9418A
• Description: (UPD7894xxA) 8-Bit Single Chip Microcontrollers
• Manufacturer: NEC

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7.3 Registers Controlling 8-Bit Timer/Event Counters 00 to 02
118
TMC00
Symbol
The following two registers are used to control 8-bit timer/event counters 00 to 02.
• 8-bit timer mode control registers 00, 01, and 02 (TMC00, TMC01, and TMC02)
• Port mode register 2 (PM2)
(1)
Caution Be sure to stop the operation of the timer before setting TMC00.
Remarks 1. f
8-bit timer mode control register 00 (TMC00)
TMC00 enables/stops operation of 8-bit timer counter 00 (TM00) and sets the count clock of TM00.
TMC00 is set using a 1-bit or 8-bit memory manipulation instruction.
RESET input sets TMC00 to 00H.
TCE00
TCL001
TCE00
<7>
0
1
1
0
0
1
2. The parenthesized values apply to operation at f
TCL000
X
Operation stopped (TM00 is cleared to 00H)
Operation enabled
: Main system clock oscillation frequency
0
1
0
6
0
1
Rising edge of TI0
Falling edge of TI0
f
f
X
X
5
0
/2
/2
Figure 7-4. Format of 8-Bit Timer Mode Control Register 00
9
6
(78.1 kHz)
(9.76 kHz)
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 00 TO 02
4
0
3
0
Count clock selection of 8-bit timer/event counter 00
TCL001 TCL000
Operation control of 8-bit timer counter 00
2
User’s Manual U13952EJ3V0UD
1
0
0
X
Address
FF53H
= 5.0 MHz.
After reset
00H
R/W
R/W