Product Info

Cinterion
®
PLS83-X Hardware Interface Overview
2.1 Application Interface
31
t PLS83-X_HIO_v00.860 2021-02-22
Confidential / Preliminary
Page 20 of 61
Table 4 lists the available I
2
S interface signals
2.1.7 Control Signals
2.1.7.1 Status LED
The GPIO5 interface line can be configured to drive a status LED that indicates different oper-
ating mode (for GPIOs see 2.1.5). GPIO and LED functionality are mutually exclusive.
To take advantage of this function connect an LED to the GPIO5/STATUS line as shown in
Figure 9
Figure 9: Status signaling with LED driver
Table 4: Overview of I
2
S pin functions
Signal name on
SMT application
interface
Signal configura-
tion inactive
Signal direction
Master
Description
DOUT PD O I
2
S data from PLS83-X to external
codec
DIN PD I I
2
S data from external codec to
PLS83-X
FSC PD O Frame synchronization signal to/
from external codec Word align-
ment (WS)
BCLK PU O Bit clock to external codec.
BCLK signal low/high time varies
between 45% and 55% of its clock
period.
VCC
STATUS
LED
GNDGND
R1
R2
R3