MX806ADW 데이터 시트보기 (PDF) - MX-COM Inc

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MX806ADW

Audio Processor

MX-COM Inc  

Audio Processor

21

MX806A

7.1.4 Timing

Timing Parameters for two-way communications between the C and the MX805A on the C-BUS are shown

in Table 12.

C-BUS Timing

tCSE

Chip Select Low to First Serial Clock Rising Edge

tCHS

Last Serial Clock Rising Edge to Chip Select High

tCSOFF Chip Select High time between transactions

tNXT

Inter-Byte Time

tCK

Serial Clock Period

Min.

2.0

4.0

2.0

4.0

2.0

Typ.

Max.

Units

s

s

s

s

s

Table 12: Timing Information

Notes:

1. Command Data is transmitted to the peripheral MSB (bit 7) first, LSB (bit 0) last. Reply Data is read from

the MX805A MXB (bit 7) first, LSB (bit 0) last.

2. Data is clocked into the MX805A and into the microcontroller on the rising Serial Clock edge.

3. Loaded data instructions are acted upon at the end of each individual, loaded byte.

4. To allow for differing microcontroller serial interface formats, the MX806A will work with either polarity

Serial Clock pulses.

CHIP SELECT

t CSOFF

SERIAL CLOCK

t CSE

t NXT

t NXT

t CSH

COMMAND DATA

765 43 210

MSB

LSB

ADDRESS/COMMAND

BYTE

t CK

765 43 210

FIRST DATA BYTE

765 43 210

LAST DATA BYTE

Logic level is not important

Figure 7: C-BUS Timing Information

1998 MX-COM, Inc.

www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054

Doc. # 20480064.006

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

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