AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 312
AT32UC3C1512C Automotive
Manufacturer Part Number
AT32UC3C1512C Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.AT32UC3C0512C_AUTOMOTIVE.pdf
(1312 pages)
3.AT32UC3C0512C_AUTOMOTIVE.pdf
(107 pages)
- AT90CAN128_AUTOMOTIVE PDF datasheet
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #2
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #3
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9166C–AVR-08/11
•Read cycle
•Null delay setup and hold
The NRDCYCLE time is defined as the total duration of the read cycle, i.e., from the time where
address is set on the address bus to the point where address may change. The total read cycle
time is equal to:
Similarly,
All NRD and NCS timings are defined separately for each chip select as an integer number of
CLK_SMC cycles. To ensure that the NRD and NCS timings are coherent, the user must define
the total read cycle instead of the hold timing. NRDCYCLE implicitly defines the NRD hold time
and NCS hold time as:
And,
If null setup and hold parameters are programmed for NRD and/or NCS, NRD and NCS remain
active continuously in case of consecutive read cycles in the same memory (see
page
1. NCSRDSETUP: the NCS setup time is defined as the setup time of address before the
2. NCSRDPULSE: the NCS pulse length is the time between NCS falling edge and NCS
3. NCSRDHOLD: the NCS hold time is defined as the hold time of address after the NCS
NCS falling edge.
rising edge.
rising edge.
313).
NRDCYCLE
NCSRDHOLD
NRDCYCLE
NRDHOLD
=
=
NCSRDSETUP
=
=
NRDCYCLE NCSRDSETUP
NRDCYCLE NRDSETUP
NRDSETUP
–
+
–
+
NCSRDPULSE
NRDPULSE
–
+
–
NRDPULSE
+
NRDHOLD
NCSRDPULSE
NCSRDHOLD
AT32UC3C
Figure 18-8 on
312
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