Cs8130, Register 2, transmit mode register #1, Register 4, output power register – Cirrus Logic CS8130 User Manual
Page 15: Register 3, transmit mode register #2
Register 2, Transmit Mode Register #1
D3
D2
D1
D0
DIR
TVR
PWID
MODU
0
0
0
0
Register
Reset (R)
BIT
NAME
VALUE
FUNCTION
DIR
Direct Mode Enable
0
1
R Mode 4 Direct access mode disabled
Mode 4 Direct access mode enabled
TVR
TV Remote Mode
Enable
0
1
R Mode 3 TV remote mode disabled
Mode 3 TV remote mode enabled
PWID
Select Pulse Width
0
1
R Set pulse width to 1.6
µ
S
Set pulse width to 3/16 of the bit period
MODU
Select Modulation
Method
0
1
R Mode 1 IrDA pulse modulation enabled
Mode 2 Amplitude modulated carrier modulation
Register 4, Output Power Register
D3
D2
D1
D0
0
0
OP1
OP0
0
0
0
0
Register
Reset (R)
BIT
NAME
VALUE
FUNCTION
OP1-0
Output Power Level
00
01
10
11
0
R
1
2
3
No LED output enabled
LED1C output only enabled
LED2C output only enabled
Both LED1C and LED2C outputs enabled
Register 3, Transmit Mode Register #2
D3
D2
D1
D0
0
CHSY
BC1
BC0
0
1
1
0
Register
Reset (R)
BIT
NAME
VALUE
FUNCTION
CHSY
Character/bit
synchronized
0
1
R
Bits are transmitted based on TXD bit transitions
Bits are transmitted timed from the start bit
BC1-0
Number of bits per
character (only
needed if CHSY = 1)
00
01
10
11
0
1
2
R
3
6 data bits per character
7 data bits per character
8 data bits per character
9 data bits ( 8 data, 1 parity) per character
CS8130
DS134PP2
15
CS8130
DS134F1
15