
R01UH0241EJ0010 Rev.0.10
Page 584 of 730
Aug 05, 2011
R8C/38T-A Group
25. Touch Sensor Control Unit
Under development Preliminary document
Specifications in this document are tentative and subject to change.
25.2.7
TSCU Timing Control Register 2 (TSCUTCR2)
Notes:
1. When the TCS4C bit is set to 0 (the number of cycles for period 4 is selected by bits TCS40 to TCS44), bits
TCS40 to TCS44 are enabled.
2. When the TCS5C bit is set to 0 (the number of cycles for period 5 is selected by bits TCS50 to TCS55), bits
TCS50 to TCS55 are enabled.
These bits are used to set the number of cycles for period 4 (before PRE measurement).
Note:
1. Value after reset.
Address 06B0Ch
Bit
b7b6
b5b4b3
b2b1b0
Symbol
After Reset
0
000
0000
Bit
b15
b14
b13
b12
b11
b10
b9
b8
Symbol
After Reset
0
000
0000
Bit
Symbol
Bit Name
Function
R/W
b0
TCS40
Period 4 cycle count select bits
b4 b3 b2 b1 b0
0 0 0 0 0: 1 cycle (after reset)
0 0 0 0 1: 2 cycles
0 0 0 1 0: 3 cycles
1 1 1 1 1: 32 cycles
R/W
b1
TCS41
R/W
b2
TCS42
R/W
b3
TCS43
R/W
b4
TCS44
R/W
b5
—
Nothing is assigned. The write value must be 0. The read value is 0.
—
b6
—
b7
TCS4C
Period 4 control bit
0: The number of cycles for period 4 is selected
by bits TCS40 to TCS44
1: The number of cycles for period 4 is 0 (skip)
R/W
b8
TCS50
Period 5 cycle count select bits
b13b12b11b10 b9 b8
0 0 0 0 0 0: 1 cycle (after reset)
0 0 0 0 0 1: 2 cycles
0 0 0 0 1 0: 3 cycles
1 111 11: 64 cycles
R/W
b9
TCS51
R/W
b10
TCS52
R/W
b11
TCS53
R/W
b12
TCS54
R/W
b13
TCS55
R/W
b14
—
Nothing is assigned. The write value must be 0. The read value is 0.
—
b15
TCS5C
Period 5 control bit
0: The number of cycles for period 5 is selected
by bits TCS50 to TCS55
1: The number of cycles for period 5 is 0 (skip)
R/W
Table 25.5
Period 4 Cycle Example
Count Source Frequency
2 Cycles
3 Cycles
32 Cycles
4 MHz
250 ns
500 ns
750 ns
8.0
s
5 MHz
200 ns
400 ns
600 ns
6.4
s
20 MHz
50 ns
100 ns
150 ns
1.6
s