2001 Jun 19

19

Philips Semiconductors

Preliminary specification

Bluetooth Adapter IC

PCF26100

6.5.10

The Oscillator Trim Register is used to control the frequency of the 13 MHz oscillator. This is achieved by controlling the

capacitive load on the XIN and XOUT pins.

Table 31 Oscillator Trim Register

Table 32 Description of XO_trim bits

6.5.11

The Identification Register is used to identify the radio chip set from the baseband controller. This is a read only register.

Table 33 Identification Register

Table 34 Description of ID bits

7

REFERENCE DOCUMENTS

1. UAA3558 Bluetooth RF Transceiver (Philips data sheet).

2. PCF26002 Bluetooth baseband controller (Philips data sheet).

3. BlueRF specification (ARM Ltd).

ADDRESS

76543210

19 (decimal)

−

XO_trim.

6

XO_trim.

5

XO_trim.

4

XO_trim.

3

XO_trim.

2

XO_trim.

1

XO_trim.

0

BIT

SYMBOL

DESCRIPTION

7

−

This bit is reserved and should not be used.

6

XO_trim.6

add 6 pF to XIN and XOUT

5

XO_trim.5

add 3 pF to XIN and XOUT

4

XO_trim.4

add 1.5 pF to XIN and XOUT

3

XO_trim.3

add 0.75 pF to XIN and XOUT

2

XO_trim.2

add 0.375 pF to XIN and XOUT

1

XO_trim.1

add 0.1875 pF to XIN and XOUT

0

XO_trim.0

add 0.09375 pF to XIN and XOUT

ADDRESS

76543210

19 (decimal)

ID.7

ID.6

ID.5

ID.4

ID.3

ID.2

ID.1

ID.0

BIT

SYMBOL

DESCRIPTION

7 to 0

ID.[7:0]

These 8 bits determine the radio chip set identification (value = A1H).