upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 181

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

7.3 Registers Controlling 8-Bit Timer/Event Counters 50 and 51
(1) Timer clock selection register 5n (TCL5n)
The following four registers are used to control 8-bit timer/event counters 50 and 51.
• Timer clock selection register 5n (TCL5n)
• 8-bit timer mode control register 5n (TMC5n)
• Port mode register 1 (PM1) or port mode register 3 (PM3)
• Port register 1 (P1) or port register 3 (P3)
Cautions 1. When rewriting TCL50 to other data, stop the timer operation beforehand.
Remark f
This register sets the count clock of 8-bit timer/event counter 5n and the valid edge of the TI5n pin input.
TCL5n can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets TCL5n to 00H.
Remark n = 0, 1
Address: FF6AH
Symbol
TCL50
2. Be sure to clear bits 3 to 7 to 0.
PRS
: Peripheral hardware clock frequency
TCL502
7
0
0
0
0
0
1
1
1
1
After reset: 00H
Figure 7-5. Format of Timer Clock Selection Register 50 (TCL50)
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50 AND 51
TCL501
6
0
0
0
1
1
0
0
1
1
R/W
Preliminary User’s Manual U19014EJ1V0UD
TCL500
5
0
0
1
0
1
0
1
0
1
TI50 pin falling edge
TI50 pin rising edge
f
f
f
f
f
f
PRS
PRS
PRS
PRS
PRS
PRS
/2
/2
/2
/2
/2
4
0
2
6
8
13
12 MHz
6 MHz
3 MHz
187.5 kHz
46.88 kHz
1.46 kHz
3
0
Count clock selection
12 MHz
f
PRS
=
TCL502
2
16 MHz
8 MHz
4 MHz
250 kHz
62.5 kHz
1.95 kHz
TCL501
1
16 MHz
f
PRS
=
TCL500
0
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