admc201 Analog Devices, Inc., admc201 Datasheet - Page 3

• Manufacturer Part Number: admc201
• Description: Motion Coprocessor
• Manufacturer: Analog Devices, Inc.

REV. B
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
NOTE
1
Number
25
26
27
28
All WRITES to the ADMC201 must occur within 1 System Clock Cycle (0 wait states).
RESET
CLK
CLK
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
t
t
t
t
per
pwh
pwl
su
su
su
hd
hd
hd
pwl
pwh
hd
su
su
hd
su
su
hd
hd
pwl
pwh
su
hd
pwl
dly
hd
pwh
pwl
csb_wrb
addr_wrb
data_wrb
wrb_clk_h
wrb_clk_l
csb_rdb
addr_rdb
rdb_clk_h
wrb_data
wrb_addr
wrb_csb
wrb_clk_h
clk_wrb_l
rdb_addr
rdb_csb
rdb_clk_h
Figure 1. Clock Input Timing
Figure 2. Reset Input Timing
rdb_data
clk
clk
wrb
rdb
resetb
rdb_data
_pio
clk
wrb
rdb
_pio
9
1
1
2
1
1
1
1
Table I. Timing Specifications (V
1
24
Timing Requirements
CLK Period
CLK Pulsewidth, High
CLK Pulsewidth, Low
CS Low before Falling Edge of WR
ADDR Valid before Falling Edge of WR
DATA Valid before Rising Edge of WR
DATA Hold after Rising Edge of WR
ADDR Hold after Rising Edge of WR
CS Hold after Rising Edge of WR
WR Pulsewidth, Low
WR Pulsewidth, High
WR Low after Rising Edge of CLK
WR High before Rising Edge of CLK
WR High before Falling Edge of CLK
WR High after Falling Edge of CLK
CS Low before Falling Edge of RD
ADDR Valid before Falling Edge of RD
ADDR Hold after Rising Edge of RD
CS Hold after Rising Edge of RD
RD Pulsewidth, Low
RD Pulsewidth, High
RD Low before Rising Edge of CLK
RD Low after Rising Edge of CLK
RESET Pulsewidth, Low
Switching Characteristics
DATA Valid after Falling Edge of RD
DATA Hold after Rising Edge of RD
Digital I/O Pulsewidth, High
Digital I/O Pulsewidth, Low
3
–3–
DD
= 5 V,
A0–A3
DATA
CLK
WR
5%; T
CS
Figure 3. Write Cycle Timing Diagram
NOTE:
ALL WRITES TO THE ADMC201 MUST OCCUR WITHIN
ONE SYSTEM CLOCK CYCLE (i.e., 0 WAIT STATES)
A
= –4
12
20
0
0
13
4.5
4.5
4.5
20
7
7
0
0
0
0
20
2 × t
0
2 × t
4
5
Min
40
20
20
10
10
20
7.5
7.5
Min
2 × t
0 C to +85 C)
10
15
per
per
per
6
clk
clk
clk
13
7
8
11
9
Max
160
Max
23
ADMC201
14
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units
ns
ns
ns
ns