SDI Technologies SDIO Card - Manual (Page 24)

©Copyright 2002-2006 SD Card Association
SDIO Card Bluetooth Type-A Simplified Specification Version 1.00
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5. CIS Formats
5.1 CIS Overview
The SDIO Card for Bluetooth utilizes Sub-Tuples of the CISTPL_SDIO_FUNCTION Tuple as described
in the SDIO specification. These Sub-Tuples are assigned a code of 0x91, which is in the 'Vendor
Specific' area as defined by the PC Card specification. The TPL_SDIO_INTERFACE field is set to the
FBR value (2) defined in the SDIO Card Type-A Specification for Bluetooth. There is one data value
used in this Tuple to inform the Host if the Retry Control Bit is supported on this card.
5.2 CISTPL_SDIO_FUNCTION: SDIO Card for Bluetooth Supported Sub-
Tuple
The CISTPL_SDIO_FUNCTION Tuple is used to inform the host if the card supports the Retry Control
Bit and functionality. This Tuple is optional; if it is not present the Card requires the Read
Acknowledgement to be sent.
Table 5 – CISTPL_SDIO_FUNCTION Tuple Definition
Byte Size Description
0x00 1 TPL_CODE_CISTPL_RTC_SUPPORTED (0x91)
0x01 1 TPL_LINK Link to the next Tuple (0x03)
0x02 1 TPL_SDIO_INTERFACE (0x02 for Type-A Bluetooth)
0x03 1 TPL_STANDARD (0x00)
0x04 1 TPL_SDIOBT_RTC (0x01 or 0x00)
5.2.1 TPL_SDIOBT_RTC: SDIO Card for Bluetooth Retry Control Support
The field denotes whether or not the Card does not require a Read Acknowledge after the Host has
done a read block.
Table 6 – TPL_SDIOBT_RTC Field Values
Value Description
0x00 The Card requires the Read Acknowledge to be sent
0x01 The Card does not require the Read Acknowledge to be sent
0x02-0xFF Reserved