at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 786
at91sam9g20-cu
Manufacturer Part Number
at91sam9g20-cu
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9G20-CU.pdf
(814 pages)
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Table 41-40. SSC Timings
Notes:
786
Symbol
SSC
SSC
SSC
SSC
SSC
SSC
SSC
SSC
SSC
SSC
SSC
SSC
SSC
SSC
0
1
2
3
4
5
6
7
8
9
10
11
12
13
(1)
(1)
1. Timings SSC4 and SSC7 depend on the start condition. When STTDLY = 0 (Receive start delay) and START = 4, or 5 or 7
2. For output signals (TF, TD, RF), Min and Max access times are defined. The Min access time is the time between the TK (or
AT91SAM9G20 Preliminary
(Receive Start Selection), two periods of the MCK must be added to timings.
RK) edge and the signal change. The Max access timing is the time between the TK edge and the signal stabilization.
41-20
Parameter
TK edge to TF/TD (TK output, TF output)
TK edge to TF/TD (TK input, TF output)
TF setup time before TK edge (TK output)
TF hold time after TK edge (TK output)
TK edge to TF/TD (TK output, TF input)
TF setup time before TK edge (TK input)
TF hold time after TK edge (TK input)
TK edge to TF/TD (TK input, TF input)
RF/RD setup time before RK edge (RK input)
RF/RD hold time after RK edge (RK input)
RK edge to RF (RK input)
RF/RD setup time before RK edge (RK output)
RF/RD hold time after RK edge (RK output)
RK edge to RF (RK output)
illustrates Min and Max accesses for SSC0. The same appliess for SSC1, SSC4, and SSC7, SSC10 and SSC13.
Transmitter
Receiver
Conditions
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
MAX corner, VDDIO = 1.8V
MAX corner, VDDIO = 3.3V
21.2 - t
15.5 - t
21.6 - t
15.9 - t
t
t
CPMCK
t
7.4 - t
6.0 - t
t
t
7.4 - t
6.2 - t
t
t
CPMCK
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
-3.1
-2.6
-3.2
-2.7
-3.2
-2.7
11.6
11.3
-3.2
-2.8
7.7
7.3
Min
(1)(2)
CPMCK
CPMCK
CPMCK
CPMCK
(1)(2)
- 13.4
(1)
(2)
- 10.5
CPMCK
CPMCK
CPMCK
CPMCK
((2)
(2)
(2)
- 9.5
- 0.7
- 2.0
(1)
+7.4
+6.1
(2)
- 6.5
(2)
(2)
(2)
2 * t
2 * t
3 * t
3 * t
4.3
3.8
17.0
11.3
22.3
16.5
4.2
3.7
4.2
3.7
Max
6384B–ATARM–15-Dec-08
CPMCK
CPMCK
CPMCK
CPMCK
(1)(2)
(1)(2)
(2)
(2)
(2)
(2)
(1)
(1)
(2)
(2)
+
+
+
+
Units
Figure
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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