Cs8130, Register 5, receive mode register, Register 6, receive sensitivity register #1 – Cirrus Logic CS8130 User Manual
Page 16: Register 7, receive sensitivity register #2
Register 5, Receive Mode Register
D3
D2
D1
D0
RTVR RMOD RWIDS RWIDL
0
0
1
1
Register
Reset (R)
BIT
NAME
VALUE
FUNCTION
RTVR,
RMOD,
RWIDS,
RWIDL
Receive Mode
0000
0001
0010
0011
0100
1000
1100
0
1
2
3
R
4
8
12
Mode 2 Amplitude modulated carrier mode
Mode 1a IRDA - fixed 1.6
µ
s pulse
Mode 1b IRDA - variable 3/16 bit cell time pulse
Mode 1c IRDA - Any width pulse from 1.6
µ
s to
3/16 bit cell time
Mode 4 Direct access mode
Mode 3 TV remote mode, oversampling receive
Mode 3 TV remote mode, timed bit cell receive
All other combinations are reserved
Register 6, Receive Sensitivity Register #1
D3
D2
D1
D0
RS3
RS2
RS1
RS0
0
1
1
1
Register
Reset (R)
BIT
NAME
VALUE
FUNCTION
RS4-0
Receive threshold
setting.
00000
00001
"
00111
"
11110
11111
0
1
"
7
R
"
30
31
7.8 nA nominal receive threshold
15.6 nA nominal receive threshold
"
62.5 nA nominal receive threshold
"
242.2 nA nominal receive threshold
250 nA nominal receive threshold
Threshold settings of less than 20nA should not be used because background noise will cause the
apparent occurrence of constant signal.
Register 7, Receive Sensitivity Register #2
D3
D2
D1
D0
0
0
0
RS4
0
0
0
0
Register
Reset (R)
CS8130
16
DS134PP2
CS8130
16
DS134F1