Renesas M16C/29 Series User Manual

12. Timer (Three-phase Motor Control Timer Function)
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page 137
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12.3.1.2 Position-data-retain Function Control Register
Figure 12.36 shows the structure of the position-data-retain function contol register.
Figure 12.36 PDRF Register
12.3.1.2.1 W-phase Position Data Retain Bit (PDRW)
This bit is used to retain the input level at pin IDW.
12.3.1.2.2 V-phase Position Data Retain Bit (PDRV)
This bit is used to retain the input level at pin IDV.
12.3.1.2.3 U-phase Position Data Retain Bit (PDRU)
This bit is used to retain the input level at pin IDU.
12.3.1.2.4 Retain-trigger Polarity Select Bit (PDRT)
This bit is used to select the trigger polarity to retain the position data.
When this bit is set to 0, the rising edge of each positive phase selected.
When this bit is set to 1, the falling edge of each pocitive phase selected.
Position-Data-Retain Function
C
ontrol Re
g
ister
(1)
Symbol Address After Reset
PDRF 034E
16 XXXX 0000 2
RO
RO
RO
RWBit Name FunctionBit Symbol
PDRW
PDRV
PDRU
W-phase position
data retain bit
Input level at pin IDU is read out.
0: "L" level
1: "H" level
NOTE:
1.This register is valid only in the three-phase mode.
Retain-trigger
polarity select bit
(b7-b4)
RW
PDRT
V-phase position
data retain bit
Nothing is assigned. If necessary, set to 0. When read,
the contents are undefined
U-phase position
data retain bit
Input level at pin IDV is read out.
0: "L" level
1: "H" level
Input level at pin IDW is read out.
0: "L" level
1: "H" level
0: Rising edge of positive phase
1: Falling edge of positive phase
b
7
b3
b
2b1b0

Renesas M16C/29 Series Specifications

General

Brand	Renesas
Model	M16C/29 Series
Category	Microcontrollers
Language	English