Specifications

GOODOCOM Technologies Confidential GOC-BA440 Specification
GOODOCOM Technologies Confidential 15
Table4: Example of Common Baud Rates
10.SDIO Pin Description
All three package options of the WLAN section provide support for SDIO version 3.0 including the new
UHS-I modes:
 DS: Default speed up to 25MHz (3.3V signaling).
 HS: High speed up to 50MH (1.8V signaling).
 SDR12: SDR up to 25MHz (1.8V signaling).
 SDR25: SDR up to 50MHz (1.8V signaling).
 SDR50: SDR up to 100MHz (1.8V signaling).
 SDR104: SDR up to 208MHz (1.8V signaling).
 DDR50: DDR up to 50MHz (1.8V signaling).
The SDIO interface also has the ability to map the interrupt signal on to a GPIO pin for applications
requiring an interrupt different from the one provided by SDIO interface. The ability to force control of
gated clocks from within the device is also provided.
The following three functions are supported:
 Function 0 Standard SDIO function (Max BlockSize / ByteCount = 32B)
 Function 1 Backplane Function to access the internal System On Chip (SOC)
address space (Max BlockSize / ByteCount = 64B)
 Function 2 WLAN Function for efficient WLAN packet transfer through DMA (Max
BlockSize/ByteCount=512B) .
SDIO Pin Description:
Desired Rate
Actual Rate
Error (%)
4000000
4000000
0.00
3692000
3692308
0.01
3000000
3000000
0.00
2000000
2000000
0.00
1500000
1500000
0.00
1444444
1454544
0.70
921600
923077
0.16
460800
461538
0.16
230400
230796
0.17
115200
115385
0.16
57600
57692
0.16
38400
38400
0.00
28800
28846
0.16
19200
19200
0.00
14400
14423
0.16
9600
9600
0.00
SD 4-Bit Mode
DATA0
Data Line 0
DATA1
Data Line 1 or interrupt
DATA2
Data Line 2 or Read Wait
DATA3
Data Line 3
CLK
Clock
CMD
Command Line