AK4160 Datasheet, PDF (35/40 Pages) Asahi Kasei Microsystems – 16-channel Capacitive Touch Sensor IC

[AK4160]
Sampling Rate & Sense Channel Control Register (SCC)
Address 0x74 (W/R) Default 0x00
Description
D7
Sampling Rate &
Sense Channel Control
TSR[2]
D6
TSR[1]
D5
TSR[0]
D4
NCH[4]
D3
NCH[3]
D2
NCH[2]
D1
NCH[1]
D0
NCH[0]
Bits
Name
Description
D7-D5
TSR
Measurement Sampling Rate Setting
fs = 4ms x 2^TSR (4ms~512ms)
D4-D0
NCH
Measurement Channel Setting
Exclusive control is provided for GPIO enable function (Addr 0x5E).
When a pin has already been selected as GPIO, the sense terminal selection is
invalid. Refer to Table 10 for the selection setting.
TSR can be changed in run mode.
NCH
00000
00001
00010
00011
00100
00101
00110
00111
01000
Sense Setting Terminal
NCH
Sense Setting Terminal
No Selection (Shutdown mode) 01001
CS0 ~ CS8
CS0
01010
CS0 ~ CS9
CS0 ~ CS1
01011
CS0 ~ CS10
CS0 ~ CS2
01100
CS0 ~ CS11
CS0 ~ CS3
01101
CS0 ~ CS12
CS0 ~ CS4
01110
CS0 ~ CS13
CS0 ~ CS5
01111
CS0 ~ CS14
CS0 ~ CS6
CS0 ~ CS7
10000 -
11111
CS0 ~ CS15
Table 10. Sense Setting Terminal
MS1313-E-01
- 35 -
2011/11