ml6440 Micro Electronics Corporation, ml6440 Datasheet - Page 9

• Manufacturer Part Number: ml6440
• Description: Multi-standard 8-bit Adaptive Digital Input Comb Filter
• Manufacturer: Micro Electronics Corporation

S DATA
S CLK
S DATA
S CLK
S DATA
S CLK
START: A Falling Edge on the S DATA While S CLK is Held High
STOP: A Rising Edge on the S DATA While S CLK is Held High
t
0
SET/START
0
MSB
‘1’
A7
1
1
START
‘0’
2
A6
2
t
RISE
S CLK:
S CLK:
S DATA:
S CLK:
S CLK:
S DATA:
S CLK:
S DATA:
S CLK:
S DATA:
S CLK:
‘1’
3
DEVICE ADDR = ‘B3’
9th pulse strobes address decoder
Rising edge enables data transfer
Value set to A6, Device Address (MSB-1)
Falling edge disables data transfer
Rising edge enables data transfer
Value set to A7, Device Address MSB
Falling edge in prep for first address transfer
Falling edge w/S CLK high means start of sequence
Address decode strobed on 9th clock
[Data is ‘don’t care’ during strobe]
‘1011 0011’ shifted on next 8 clocks
Falling edge in prep for device address transfer
‘1’
Figure 3. Definition of DATA FORMAT on Serial Data Bus
4
Figure 2. Definition of START & STOP on Serial Data Bus
A1
7
‘0’
5
A0
All Other S DATA Transitions Must Occur While S CLK is Low
8
Figure 4. Typical Serial Bus Command
‘0’
6
9
‘1’
7
‘1’
8
Ø
9
D7
10
MSB
D7
A
D6
11
D6
B
D5
C
CONTROL REGISTER
D1
16
D
D4
S DATA:
S DATA:
S CLK:
S CLK:
S DATA:
S CLK:
S CLK:
S DATA:
S
Control register, load MSB first
D3
DATA
E
D0
17
:
Rising edge with S CLK Hi = STOP
Value set low in prep for STOP
18th pulse strobes data shift register
Rising edge enables data transfer
Value set to D6, Data MSB-1
Falling edge disables data transfer
Rising edge enables data transfer
Value set to D7, Data MSB
Final Clock strobes data into register
D2
F
t
FALL
18
D1
G
D0
H
ML6440
STROBE (ACK)
STOP
Ø
I
STOP
9