Datasheet

MAX13335E/MAX13336E
Dual Automotive Differential Audio Receivers
with I
2
C Control and Diagnostics
15
Status Register 0 (STAT0)
The bits in Status Register 0 are updated to reflect the states of the upper (DH_) and lower (DL_) comparator’s threshold
when voltage sensing is enabled for the corresponding diagnostic I/O. Combinations of DH_ and DL_ can be used to
decode the fault on the I/O port.
Bits 7, 5, 3, 1: DH_ (Diagnostic Upper Comparator Threshold V
IDH
)
0 = Below upper threshold
1 = Above upper threshold
Bits 6, 4, 2, 0: DL_ (Diagnostic Lower Comparator Threshold V
IDL
)
0 = Below lower threshold
1 = Above lower threshold
Register Map
Table 1. Interpretation of Diagnostic Status Bits
NAME REG BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 R/W POR SETTINGS
STAT0 00 DH3 DL3 DH2 DL2 DH1 DL1 DH0 DL0 R 0x00
STAT1 01 APD CLD JSD TSD — ID2 ID1 ID0 R 0x00
CTRL0 02 API CLI JSI — — ZEN MUTE SHDN
R/W
0x00
CTRL1 03 — — — — — — I2C1 I2C0
R/W
0x00
DIAG0 04 D1[3] D1[2] D1[1] D1[0] D0[3] D0[2] D0[1] D0[0]
R/W
0x00
DIAG1 05 D3[3] D3[2] D3[1] D3[0] D2[3] D2[2] D2[1] D2[0]
R/W
0x00
GAIN 06 GL3 GL2 GL1 GL0 GR3 GR2 GR1 GR0
R/W
0x00
ADDRESS: 0x00
MODE: R
BIT 7 6 5 4 3 2 1 0
NAME
DH3 DL3 DH2 DL2 DH1 DL1 DH0 DL0
POR
0 0 0 0 0 0 0 0
DH_ DL_ CONDITION
0 0 Short-to-ground (or disabled)
0 1 No fault
1 0 Invalid (not used)
1 1 Short-to-battery if current source is disabled (i.e., D_[3:0] = 1110)
1 1 Open-load if current source is enabled (i.e., D_[3:0] = 0001 to 1101)