Pcm Interface - Quectel RM510Q-GL Hardware Design

Table 18: PCIe Power-up Timing of the Module
Symbol Min.
T 0 ms
power-on
T -
turn-on
T 90 ms
FCPO#-CLKREQ#
T 100 ms
FCPO#-PERST#
100 μs
T
PERST#-CLK

4.4. PCM Interface

The module supports audio communication via Pulse Code Modulation (PCM) digital interface. The PCM
interface supports the following modes:
⚫
Primary mode (short frame synchronization): the module works as both master and slave
⚫
Auxiliary mode (long frame synchronization): the module works as master only
In primary mode, the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising
edge. The PCM_SYNC falling edge represents the MSB. In this mode, the PCM interface supports
256 kHz, 512 kHz, 1024 kHz or 2048 kHz PCM_CLK at 8 kHz PCM_SYNC, and also supports 4096 kHz
PCM_CLK at 16 kHz PCM_SYNC.
In auxiliary mode, the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising
edge. The PCM_SYNC rising edge represents the MSB. In this mode, PCM interface operates with a
256 kHz PCM_CLK and an 8 kHz, 50 % duty cycle PCM_SYNC only.
The module supports 16-bit linear data format. The following figures show the primary mode's timing
relationship with 8 kHz PCM_SYNC and 2048 kHz PCM_CLK, as well as the auxiliary mode's timing
relationship with 8 kHz PCM_SYNC and 256 kHz PCM_CLK.
RM510Q-GL_Hardware_Design
Typ. Max.
20 ms -
68 ms -
100 ms -
- -
- -
RM510Q-GL Hardware Design
Comment
Module power-on time depending on the host.
Module system turn on time.
PCIe clock request.
PCIe reset.
The time period during which REFCLK is stable
before PERST# is inactive.
5G Module Series
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