RS9110-N-11-02-EVB Redpine Signals, RS9110-N-11-02-EVB Datasheet - Page 21

• Manufacturer Part Number: RS9110-N-11-02-EVB
• Description: WiFi / 802.11 Development Tools RS9110-N-11-02 Evaluation Board
• Manufacturer: Redpine Signals

Specifications of RS9110-N-11-02-EVB

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: RS9110-N-11-02
• Protocol Supported: 802.11 b/g/e/i
• Frequency: 2.4 GHz
• Interface Type: SDIO, SPI
• Operating Supply Voltage: 3.3 V
• Antenna Connector Type: Chip
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Modulation Technique: CCK, DSSS, OFDM

4.4.1.2: High Speed Mode
4.4.2: SPI Interface
The SPI Interface is a full duplex serial host interface, which supports 8-bit and 32-
bit data granularity. It also supports gated mode of SPI clock and both the low and
the high frequency modes. Incase of low frequency host, the data is driven on the
falling edge and sampled on the rising edge and hence, it should be ensured that a
valid data is present on the bus at the immediate rising edge after the SPI chip select
is driven low. For high frequency transmission the data is driven as well as sampled
on rising edge.
This interface has the interrupt pin along with the regular signals clock, chip select,
data in and data out. Device interrupts the host processor regarding the packet
pending event through this interrupt pin. This is an active high signal, and this will
get cleared only after clearing the source of the interrupt, i.e. reading the pending
packet from device. This will be generally connected to a GPIO pin of host platform
and GPIO has to be configured for detecting interrupt on level high, and interrupt
from this GPIO has to be mapped to driver ISR.
The SPI Slave supports mode 0 (SPI_POL=0, SPI_PHA=0) and mode 3 (SPI_POL=1,
SPI_PHA=1).
Redpine Signals, Inc. Proprietary and confidential
Parameter
SDIO_CLK
SDIO_DATA, input setup time
SDIO_DATA, input hold time
SDIO_DATA, clock to output
delay
Figure 7: Interface Timings – SDIO Interface High-speed Mode
RS9110-N-11-02 802.11bgn WLAN Module
Table 5: AC Characteristics – SDIO Interface High-Speed Mode
SDIO_CLK
SDIO_DATA
SDIO_DATA
Version 1.49
Data Sheet
Ts
Symbol
Tsdio
Ts
Th
Tod
Th
Min.
25
5
2
5.5
Typ.
-
-
-
-
Tod
Max.
50
-
-
12.5
Units
MHz
ns
ns
ns
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