AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 337
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)
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Figure 18-33. Page Mode Read Protocol (Address MSB and LSB Are Defined in
18.6.9.2
9166C–AVR-08/11
A[MSB]
D[15:0]
A[LSB]
CLK_SMC
NRD
NCS
Byte access type in page mode
The NRD and NCS signals are held low during all read transfers, whatever the programmed val-
ues of the setup and hold timings in the User Interface may be. Moreover, the NRD and NCS
timings are identical. The pulse length of the first access to the page is defined with the
PULSE.NCSRDPULSE field value. The pulse length of subsequent accesses within the page
are defined using the PULSE.NRDPULSE field value.
In page mode, the programming of the read timings is described in
Table 18-7.
The SMC does not check the coherency of timings. It will always apply the NCSRDPULSE tim-
ings as page access timing (t
programmed value for t
The byte access type configuration remains active in page mode. For 16-bit or 32-bit page mode
devices that require byte selection signals, configure the MODE.BAT bit to zero (byte select
access type).
Parameter
READMODE
NCSRDSETUP
NCSRDPULSE
NRDSETUP
NRDPULSE
NRDCYCLE
NCSRDPULSE
Programming of Read Timings in Page Mode
t
pa
Value
‘x’
‘x’
t
‘x’
t
‘x’
pa
sa
pa
is shorter than the programmed value for t
pa
) and the NRDPULSE for accesses to the page (t
Definition
No impact
No impact
Access time of first access to the page
No impact
Access time of subsequent accesses in the page
No impact
NRDPULSE
t
sa
Table 18-6 on page
NRDPULSE
t
sa
Table 18-7 on page
sa
.
AT32UC3C
336)
sa
), even if the
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