Cirrus Logic CS4244 - Manual (Page 55)

DS900F1 55
CS4244
6.14 Master and DAC1-4 Volume Control (Address 17h, 18h, 19h, 1Ah, & 1Bh)
6.14.1 x Volume Control
Sets the level of the x Volume Control. Each volume step equals 6.02 /
16
dB ~= 0.38 dB. See Section
4.6.5.1 on page 39 for the muting behavior of these volume registers.
6.15 Interrupt Control (Address 1Eh)
6.15.1 INT MODE
Sets the behavior mode of the interrupt registers of the device. In the default configuration, if the interrupt
notification registers are read and any error is found to have occurred since the last clearing of that reg-
ister, the device will automatically set the corresponding mask bit in the appropriate mask register. In the
nondefault configuration, mask bits are not set automatically.
6.15.2 Interrupt Pin Polarity
Sets the output mode of the interrupt pin.
7 6 5 4 3 2 1 0
x VOLUME[7:0]
x VOLUME x Volume is: [dB]
00000000 +6.02
00001111 +0.38
00010000 0
00010001 -0.38
00011000 -3.01
... ...
11111110 -89.55 (most total attenuation before mute)
11111111 -89.92 (least total attenuation before unmute)
7 6 5 4 3 2 1 0
INT MODE INT POL [1:0] Reserved Reserved Reserved Reserved Reserved
INT MODE Upon the reading of an error out of the interrupt notification bits, the CS4244 will:
0 Automatically set the corresponding mask bit.
1 Not set the corresponding mask bit.
INT POL Output mode of the interrupt pin is:
00 Active High
01 Active Low
10 Active Low/Open Drain
11 Reserved