National CP3BT26 manual Register Map, Bluetooth LLC Registers

CP3BT26

28.0 Register Map

Table 82 is a detailed memory map showing the specific memory address of the memory, I/O ports, and registers. The table shows the starting address, the size, and a brief description of each memory block and register. For detailed information on using these memory locations, see the appli- cable sections in the data sheet.

All addresses not listed in the table are reserved and must not be read or written. An attempt to access an unlisted ad- dress will have unpredictable results.

Each byte-wide register occupies a single address and can be accessed only in a byte-wide transaction. Each word- wide register occupies two consecutive memory addresses and can be accessed only in a word-wide transaction. Both

the byte-wide and word-wide registers reside at word boundaries (even addresses). Therefore, each byte-wide register uses only the lowest eight bits of the internal data bus.

Most device registers are read/write registers. However, some registers are read-only or write-only, as indicated in the table. An attempt to read a write-only register or to write a read-only register will have unpredictable results.

When software writes to a register in which one or more bits are reserved, it must write a zero to each reserved bit unless indicated otherwise in the description of the register. Read- ing a reserved bit returns an undefined value.

Table 82 Detailed Device Mapping

Register Name	Size	Address	Access	Value After	Comments
			Type	Reset
	Bluetooth LLC Registers
PLN	Byte	0E F180h	Write-Only
WHITENING_CHANNEL_SELECTION	Byte	0E F181h	Write-Only
SINGLE_FREQUENCY_SELECTION	Byte	0E F182h	Write-Only
LN_BT_CLOCK_0	Byte	0E F198h	Read-Only
LN_BT_CLOCK_1	Byte	0E F199h	Read-Only
LN_BT_CLOCK_2	Byte	0E F19Ah	Read-Only
LN_BT_CLOCK_3	Byte	0E F19Bh	Read-Only
RX_CN	Byte	0E F19Ch	Read-Only
TX_CN	Byte	0E F19Dh	Read-Only
AC_ACCEPTLVL	Word	0E F19Eh	Write-Only
LAP_ACCEPTLVL	Byte	0E F1A0h	Write-Only
RFSYNCH_DELAY	Byte	0E F1A1h	Write-Only
SPI_READ	Word	0E F1A2h	Read-Only
SPI_MODE_CONFIG	Byte	0E F1A4h	Write-Only
M_COUNTER_0	Byte	0E F1A6h	Read/Write
M_COUNTER_1	Byte	0E F1A7h	Read/Write
M_COUNTER_2	Byte	0E F1A8h	Read/Write
N_COUNTER_0	Byte	0E F1AAh	Write-Only
N_COUNTER_1	Byte	0E F1ABh	Write-Only
BT_CLOCK_WR_0	Byte	0E F1ACh	Write-Only
BT_CLOCK_WR_1	Byte	0E F1ADh	Write-Only
BT_CLOCK_WR_2	Byte	0E F1AEh	Write-Only
BT_CLOCK_WR_3	Byte	0E F1AFh	Write-Only

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