GM6535 データシートの表示（PDF） - Hyundai Micro Electronics

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GM6535

60 MHz Universal Programmable Dual PLL Frequency synthesizer

Hyundai Micro Electronics 

GM6535

COMTROL REGISTER IDENTIFIER = 1

COMTROL REGISTER DATA

D in

1

0

TEST

BIT

AUX

Data

Select

REF

OUT

÷3/÷4

TxPD RxPD Ref PD

Enable Enable Enable

MSB

LSB

CLK

ENB

NOTE: ENB must be high during the serial transfer.

Figure 8. Programming Format of the control Register

Table 1. Control Register Function Bits Description

Test Bit

Aux Data

Select

REF out÷3/÷4

TxPD Enable

RxPD Enable

Ref PD

Enable

Set to 1 for Tx/Rx channel counter test mode

Set to 0 for normal application

Set to 1 for both ADin and Din pins inputting the transmit 16-bits data and receive 16-bits data respectively

Set to 0 for normal application interfacing with MCU serial peripheral interface.

Does not use AD in pin; tie AD in to VSS.

If set to 1, REFout output frequency is equal to OSC out ÷3.

If set to 0, REFout output is OSC out ÷4.

If set to 1, the transmit counter, transmit phase detector, and the associated circuitry is in power-down

mode. TxPS/fTx is set “High”.

If set to 1, the receive counter, receive phase detector, and the associated circuitry is in power-down mode.

RxPS/fTx is set “High”.

If set to 1, both 12-bit and 14-bit reference frequency counters are in power-down mode

Table 2. Control Register Power Down Bits Function

TxPD

Enable

0

0

0

0

1

1

1

1

RxPD

Enable

0

0

1

1

0

0

1

1

REF PD

Enable

0

1

0

1

0

1

0

1

Tx-Channel Counter

-

-

-

-

Power Down

Power Down

Power Down

Power Down

Rx-channel Counter

-

-

Power Down

Power Down

-

-

Power Down

Power Down

Reference

Frequency Counter

-

Power Down

-

Power Down

-

Power Down

-

Power Down

8

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