Sequencer Registers; Command Register; Table 16-12 Command Register Description - Motorola DragonBall MC9328MX1 Reference Manual

Bluetooth Accelerator (BTA)

16.5.1 Sequencer Registers

Three addresses correlate to sequencing functions. The Command Register and Status Register are write
and read registers associated with one address.

16.5.1.1 Command Register

The write-only Command Register controls the BTA functions such as enabling or disabling interrupts,
controlling the Bluetooth pipeline, and setting the correlation window size.
Reading address 0x00216000 returns the Status Register (see section 16.5.1.2). The Command Register
bits and their settings are described in Table 16-12 on page 16-26.
COMMAND
BIT 31 30 29
TYPE r r r
0 0 0
RESET
BIT 15 14 13
AAO EHI EFI
TYPE w w w
0 0 0
RESET
Name
Reserved Reserved—These bits are reserved and should read 0.
Bits 31–16
AAO Abort All Operations—Indicates that the BTA must abort the
Bit 15 current process. For example, when the software detects that the
packet is not addressed to the unit, it aborts the reception. AAO
initializes the FSM in the BTA and must always be
CMD is given.
EHI Enable End-of-Header Interrupt—Enables/Disables the
Bit 14 End-of-Header interrupt during packet reception.
EFI Enable End-of-Frame Interrupt—Enables/Disables the
Bit 13 End-of-Frame interrupt during packet reception and
transmission.
PIPE Bluetooth Pipeline Processing Control—Determines whether
Bit 12 to bypass the Bluetooth pipeline module. When bypass is
selected (PIPE is set), data flows directly between the Bit Buffer
and the RF sub-modules.
16-26
Command Register
28 27 26 25
r r r r
0 0 0 0
12 11 10 9
PIPE
w r r r
0 0 0 0
Table 16-12. Command Register Description
Description
MC9328MX1 Reference Manual
24 23 22 21 20
r r r r r
0 0 0 0 0
0x0000
8 7 6 5 4
OS CWS
r r w w r
0 0 0 0 0
0x0004
0 = Do not abort
1 = Abort
whenever a
1
0 = Disable EHI interrupt
1 = Enable EHI interrupt
0 = Disable EFI interrupt
1 = Enable EFI interrupt
0 = Bluetooth pipeline enabled
1 = Bypass Bluetooth pipeline
Addr
0x00216000
19 18 17 16
r r r r
0 0 0 0
3 2 1 0
IDP MS CMD
w w w w
0 1 0 0
Settings
after the header trailer bits
MOTOROLA