BT8954 CONEXANT [Conexant Systems, Inc], BT8954 Datasheet - Page 67

• Manufacturer Part Number: BT8954
• Description: VOICE PAIR GAIN FRAMER
• Manufacturer: CONEXANT [Conexant Systems, Inc]

Bt8954
Voice Pair Gain Framer
The PLL_A register contains the A part of scaling PLL_FRACP. For the definitions of PLL_A and
PLL_FRACP, see PLL in Section 3, Circuit Descriptions.
The PLL_B register contains the B part of scaling PLL_FRACP. For the definitions of PLL_B and
PLL_FRACP, see PLL in Section 3, Circuit Descriptions.
The PLL_SCALE register contains the PLL_X and PLL_C values for pre-scaling the PLL input and for
post-scaling the PLL output. PLL_P indicates the maximum microcomputer frequency the Bt8954 supports
(
N8954DSC
0xB3—PLL_A Register (PLL_A)
0xB4—PLL_B Register (PLL_B)
0xB5—PLL_SCALE Register (PLL_SCALE)
f
GCLK
/2)
. For the definitions of PLL_C, PLL_X, and PLL_P, see PLL in Section 3, Circuit Descriptions.
—
7
7
7
6
6
6
PLL_P[1:0]
5
5
5
4
4
4
Conexant
PLL_A[7:0]
PLL_B[7:0]
PLL_C[2:0]
3
3
3
2
2
2
PLL_X[1]
1
1
1
4.7 PLL Configuration
4.0 Registers
PLL_X[0]
0
0
0
4-15