CMX860 查看數據表（PDF） - MX-COM Inc

零件编号

产品描述 (功能)

生产厂家

CMX860

Telephone Signaling Transceiver

MX-COM Inc  

Telephone Signaling Transceiver

16

CMX860 Advance Information

4.12.1 General Reset Command (no data) ($01)

This command resets the device and clears all bits of the General Control, Transmit Mode and Receive Mode

Registers and bits 15 and 13-0 of the Status Register.

Whenever power is applied to the CMX860 a General Reset command should be sent to the device, after

which the General Control Register should be set as required.

a) Single byte from µC

CS

SERIAL CLOCK

COMMAND DATA

765432 10

REPLY DATA

Address (01 Hex = Reset)

Hi-Z

b) One Address and one Data byte from µC

CS

SERIAL CLOCK

COMMAND DATA

765432 10

Address

REPLY DATA

Hi-Z

Note:

The SERIAL CLOCK line may be high

or low at the start and end of each

transaction.

= Level not important

765432 10

Data to CMX860

c) One Address and 2 Data bytes from µC

CS

SERIAL CLOCK

COMMAND DATA

765432 10

Address

REPLY DATA

Hi-Z

765432 10

First (msb) data

byte to CMX860

765432 10

Second (lsb) data

byte to CMX860

d) One Address byte from µC and one Reply byte from CMX860

CS

SERIAL CLOCK

COMMAND DATA

765432 10

Address

REPLY DATA

Hi-Z

765432 10

Data from CMX860

e) One Address byte from µC and 2 Reply bytes from CMX860

CS

SERIAL CLOCK

COMMAND DATA

765432 10

Address

REPLY DATA

Hi-Z

765432 10

First (msb) byte

from CMX860

765432 10

Second(lsb) byte

from CMX860

Figure 13: C-BUS Transactions

¤2000 MX-COM, Inc.

www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054

Doc. # 20480222.001

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

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