M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 398

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

396
CHAPTER 8 16-BIT 2-PHASE ENCODER INPUT UP/DOWN COUNTER/GENERAL-PURPOSE TIMER (TIMER ENC1n)
(5) Prescaler mode register 1n (PRM1n)
Note V850E/IA4 only
Remark
The PRM1n register is used to perform the following selections.
• Selection of count clock in general-purpose timer mode (TUM1n.CMDn bit = 0)
• Selection of count operation mode in UDC mode (CMDn bit = 1)
This register can be read or written in 8-bit or 1-bit units.
Reset sets this register to 07H.
Cautions 1. Overwriting the PRM1n register during TMENC1n operation (TMC1n.TM1CEn bit = 1) is
(a) In general-purpose timer mode (TUM1n.CMDn bit = 0)
The count clock is specified by the PRM1n2 to PRM1n0 bits.
f
V850E/IA3
V850E/IA4
XX
: Peripheral clock
n = 0, 1
2. In UDC mode (TUM1n.CMDn bit = 1), setting the values of the PRM1n2 bit to 0 is
3. When TMENC1n is in mode 4, specification of the valid edge for the TIUD1n and TCUD1n
PRM1n
n = 0
After reset: 07H
prohibited.
prohibited.
pins is invalid.
PRM1n2
7
0
0
0
0
0
1
1
1
1
PRM1n1
R/W
6
0
0
0
1
1
0
0
1
1
User’s Manual U16543EJ4V0UD
PRM1n0
Address: PRM10 FFFFF58EH, PRM11 FFFFF5AEH
5
0
0
1
0
1
0
1
0
1
Setting prohibited
f
f
f
f
f
f
f
XX
XX
XX
XX
XX
XX
XX
CMDn = 0
Count clock
/4
/8
/16
/32
/64
/128
/256
4
0
3
0
TIUD1n
Setting prohibited
Count clock
PRM1n2
2
CMDn = 1
PRM1n1 PRM1n0
1
Mode 1
Mode 2
Mode 3
Mode 4
UDC mode
Note
0