upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 164

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

(5) Prescaler mode registers 1, 11 (PRM1, PRM11)
164
PRM1 and PRM11 select the count clock of the 16-bit timer (TM1) and the valid edge of TI1n input. PRM1 and
PRM11 are set by an 8-bit memory manipulation instruction.
RESET input clears PRM1 and PRM11 to 00H.
Remark
After reset: 00H R/W
PRM11
After reset: 00H R/W
PRM1
n = 0, 1
Note The external clock requires a pulse longer than two internal clocks (f
PRM12
ES111
ES111
ES101
7
0
7
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
PRM01
ES110
ES110
ES100
6
0
6
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
CHAPTER 7 TIMER/COUNTER FUNCTION
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
PRM00
ES101
User’s Manual U12768EJ4V1UD
5
0
5
0
1
0
1
0
1
0
1
Address: FFFFF21EH
Address: FFFFF216H
f
f
f
TI10 valid edge
f
f
f
Setting prohibited
XX
XX
XX
XX
XX
XX
ES100
/2
/4
/16
/32
/128
/256
4
0
Count Clock
4
Selection of Valid Edge of TI11
Selection of Valid Edge of TI10
Note
3
0
3
0
Count Clock Selection
20 MHz 17 MHz 10 MHz 2 MHz
100 ns
200 ns
800 ns
1.6
6.4
12.8
−
−
µ
µ
µ
s
s
2
0
s 15.1
2
0
118 ns
235 ns
941 ns
1.9
7.5
−
−
µ
µ
s
s
µ
PRM11
s 25.6
f
XX
1
0
1
200 ns
400 ns
1.6
3.2
12.8
−
−
µ
µ
s
s
µ
µ
XX
s 64
s 128
PRM12
PRM10
/2).
1
2
8
16
0
µ
µ
µ
0
µ
µ
s
s
s
−
−
s
s
µ
Note
s