SC9257 查看數據表（PDF） - Silan Microelectronics

零件编号

产品描述 (功能)

生产厂家

SC9257

0.3-6.0V PLL for digital tuning systems (DTS)

Silan Microelectronics 

Silan

Semiconductors

SC9257

REGISTER ASSIGMENTS

Address=D0H

LSB

LSB

P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 R0 R1 R2 R3 FM MODE OSC1 OSC2

Address=D2H

Programmable counter data

(*2)

Reference

frequency

code data

Programmable

counter

mode

Crystal

oscillator

selection bits

G0 G1 SC IF1 IF2 CLK DOHZ RESET START TEST C5 C6 M7 M8 M9 O1 O2 O3 O4 O5 O6 O7 O8 O9

Gate

time

select

CLK

RESET

TEST

I/O port

bit

bit

bit

and general-purpose

counter switching bits

DOHZ

bit

START

bit

Also used as

general-

purpose

counter input

selection bits

I/O port control

Output port output data

Address=D1H

LSB

f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 f10 f11 f12 f13 f14 f15 f16 f17 f18 f19 OVER BUSY "0" "0"

General-purpose counter data

Not

used

Address=D3H

ENA-

BLE

UN

LOCK

PE1

PE2

PE3

"0"

"0"

"0"

"0"

"0"

C5

C6

M7 M8 M9 O1 O2

O3

O4

I5

I6

I7

I8

I9

Lock detection data

Not used

I/O port control data

Output data

Input data

When power is turned on, the input registers are set as shown below.

Address=D0H

LSB

MSB

(*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) 1 1 1 1 1 1 0 0

Address=D2H

000000000000000000000000

Note: 1. Data are undefined.

2. Set data to “0” for test bit.

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

REV: 1.0

8

2001.10.18

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