upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 490

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 14
490
Bit position
5 to 4
Initial Value
Table 14-8
Address
Access
ES00[1:0]
Bit name
Note
(2)
PRM00 - WCT prescaler mode register
The 8-bit PRM00 register is used to select the “valid edge” of INTWT0UV for
interval measurements.
This register can be read/written in 8-bit or 1-bit units.
<base> + 7
00
PRM00 register contents
All other bits are initialized as zero and must not be changed.
1.
2.
Preliminary User’s Manual U17566EE1V2UM00
H
Function
Edge selection:
R
. This register is cleared by any reset.
If both edges of INTWT0UV are specified as valid, INTWT0UV interval
measurement is not possible.
Stop the timer before changing ES00[1:0].
7
0
ES001
0
0
1
1
H
R
6
0
ES000
0
1
0
1
ES001
R/W
5
Valid edge
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
ES000
R/W
4
R
3
0
R
2
0
Watch Timer (WT)
R
1
0
R
0
0