3.4.1.3 Response Format (BM70/71 to Host)
The BM70/71 responds to the Read Buffer Size command with an HCI Command complete message (HCI Event Responses) with additional parameters appended to indicate the BM70/71 internal buffer sizes. These additional parameters indicate the packet length or buffer size, as well as the total number of buffers available in the BM70/71 device. The following figure illustrates the format, and the tables list the response for various values.
|
Value of Parameter (3) |
Parameter Description |
Length – 1 Byte |
|---|---|---|
0xXX | Number of HCI command packets which can be sent to the BM70/71 from the host | — |
|
Value of Parameter (4...5) |
Parameter Description |
Length – 2 Bytes |
|---|---|---|
0x1005 | HCI command opcode which is processed by the BM70/71 | Format is little endian |
|
Value of Parameter (6) |
Parameter Description |
Length – 1 Byte |
|---|---|---|
0xXX | 0x00 - Success 0x01...0xFF - For more details on error codes, see Error Code Table Reference | — |
|
Value of Parameter (7...8) |
Parameter Description |
Length – 2 Bytes |
|---|---|---|
0xXXXX | HCI-ISDAP command packet length. Maximum length, in bytes, of HCI-ISDAP command packet the BM70/71 can accept. The user must not send any total message size that exceeds this length. | Format is little endian |
|
Value of Parameter (9) |
Parameter Description |
Length – 1 Byte |
|---|---|---|
0xXX | Synchronous data packet length. For the purposes of programming, the user can ignore this field. | — |
|
Value of Parameter (10...11) |
Parameter Description |
Length – 2 Bytes |
|---|---|---|
0xXXXX | Total number of HCI-ISDAP command packets. This is the number buffers in the BM70/71 device. | Format is little endian |
|
Value of Parameter (12...13) |
Parameter Description |
Length – 2 Bytes |
|---|---|---|
0xXXXX | Total number of Synchronous Data packets. For the purposes of programming, the user can ignore this field. | Format is little endian |