Manual

DS792F2 29
CS43L22
Confidential Draft
3/4/10
4.6 Serial Port Clocking
The CS43L22 serial audio interface port operates either as a slave or master, determined by the M/S bit. It
accepts externally generated clocks in Slave Mode and will generate synchronous clocks derived from an
input master clock (MCLK) in Master Mode. Refer to the tables below for the required setting in register 05h
and 06h associated with a given MCLK and sample rate.
Referenced Control Register Location
M/S...................................
Register 05h......................
Register 06h......................
“Master/Slave Mode” on page 40
“Clocking Control (Address 05h)” on page 38
“Interface Control 1 (Address 06h)” on page 40
MCLK
(MHz)
Sample Rate,
Fs (kHz)
SPEED[1:0]
(AUTO=’0’b)
32kGROUP VIDEOCLK RATIO[1:0] MCLKDIV2
12.2880
8.0000 11 1 0 00 0
12.0000 11 0 0 00 0
16.0000 10 1 0 00 0
24.0000 10 0 0 00 0
32.0000 01 1 0 00 0
48.0000 01 0 0 00 0
96.0000 00 0 0 00 0
11.2896
11.0250 11 0 0 00 0
22.0500 10 0 0 00 0
44.1000 01 0 0 00 0
88.2000 00 0 0 00 0
18.4320
(Slave
Mode
ONLY)
8.0000 11 1 0 00 0
12.0000 11 0 0 00 0
16.0000 10 1 0 00 0
24.0000 10 0 0 00 0
32.0000 01 1 0 00 0
48.0000 01 0 0 00 0
96.0000 00 0 0 00 0
16.9344
(Slave
Mode
ONLY)
*8.0182... 11 0 0 10 0
11.0250 11 0 0 00 0
22.0500 10 0 0 00 0
44.1000 01 0 0 00 0
88.2000 00 0 0 00 0
12.0000
8.0000 11 1 0 01 0
*11.0294... 11 0 0 11 0
12.0000 11 0 0 01 0
16.0000 10 1 0 01 0
*22.0588...10 0 0110
24.0000 10 0 0 01 0
32.0000 01 1 0 01 0
*44.1176...01 0 0110
48.0000 01 0 0 01 0
*88.2353...00 0 0110
96.0000 00 0 0 01 0
24.0000
8.0000 11 1 0 01 1
*11.0294... 11 0 0 11 1
12.0000 11 0 0 01 1
16.0000 10 1 0 01 1
*22.0588...10 0 0111
24.0000 10 0 0 01 1
32.0000 01 1 0 01 1
*44.1176...01 0 0111
48.0000 01 0 0 01 1
*88.2353...00 0 0111
96.0000 00 0 0 01 1