8 bluetooth shared data ram, Bluetooth shared data ram, Cp3bt26 – National CP3BT26 User Manual

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78

CP3BT26

15.8

BLUETOOTH SHARED DATA RAM

The shared data RAM is a 4.5K memory-mapped section of
RAM that contains the link control data, RF programming
look-up table, and the link payload. This RAM can be read
and written in the same way as the Static RAM space and
can also be read by the sequencer in the Bluetooth LLC. Ar-
bitration between these devices is performed in hardware.
Table 33 shows the memory map of the Bluetooth LLC
shared Data RAM.

Table 33

Memory Map of Bluetooth Shared RAM

Address

(offset from 0E 8000h)

Description

0000

h–

01D9h

RF Programming

Look-up Table

01DAh

01FFh

Unused

0200h

023Fh

Link Control 0

0240h

027Fh

Link Control 1

0280h

02BFh

Link Control 2

02C0h

02FFh

Link Control 3

0300h

033Fh

Link Control 4

0340h

037Fh

Link Control 5

0380h

03BFh

Link Control 6

03C0h

03FFh

Link Control 7

0400h

11FFh

Link Payload 0

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