NHPXA270C5C520 Intel, NHPXA270C5C520 Datasheet - Page 87

• Manufacturer Part Number: NHPXA270C5C520
• Description: IC MPU 32BIT 520MHZ 356-PBGA
• Manufacturer: Intel

Specifications of NHPXA270C5C520

• Processor Type: XScale®
• Speed: 520MHz
• Voltage: 1.45V
• Mounting Type: Surface Mount
• Package / Case: 356-PBGA
• For Use With: 460-3472 - KIT DEV ZOOM STARTER FOR PXA270
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: 868459

6.4.4
6.4.4.1
6.4.4.1.1
Electrical, Mechanical, and Thermal Specification
DQM<1:0>(SA1110x='0')
DQM<1:0>(SA1110x='1')
Figure 6-14. 16-bit ROM/Flash/SRAM Read for 4/2/1 Bytes Timing
MA<0>(SA1110x='0')
MA<0>(SA1110x='1')
nADV(nSDCAS)
CLK_MEM
MD<15:0>
MA<25:1>
nCS<0>
RDnWR
Flash Memory Parameters and Timing Diagrams
The following sections describe the read/write parameters and timing diagrams for asynchronous
and synchronous flash-memory interfaces with the memory controller.
Flash Memory Read Parameters and Timing Diagrams
Section 6.4.4.1.1
flash reads.
Asynchronous Flash Read Parameters and Timing Diagrams
The timings listed in
Figure
asynchronous flash read.
nWE
nOE
6-11,
Figure
16-bit ROM or
16-bit SRAM
addr
non-burst flash
Applies to:
32-bit read
NOTE: MSC0[RDF0] = 2, MSC0[RDN0] = 1, MSC0[RRR0] = 1
tromAS
tromCES
describes asynchronous flash reads.
0b00
mask
6-12,
tromAVDVF
0/1
Table 6-16
0
tromDOH
tromDSOH
addr + 1
Figure
tromAVDVS
tromCEH
tromDSOH
tromDOH
for ROM reads also apply to asynchronous flash reads. See
6-13, and
non-burst flash
16-bit ROM or
16-bit SRAM
16-bit burst flash
16-bit read
Applies to:
tromCD
0b00
mask
tromAS
tromCES
addr
0/1
0
Figure 6-14
tromAVDVF
tromDSOH
tromDOH
Section 6.4.4.1.2
for timings diagrams representative of an
8-bit read
non-burst flash
16-bit burst flash
Applies to:
16-bit ROM or
16-bit SRAM
tromCD
0b00
mask
tromAS
tromCES
addr
0/1
0
tromAVDVF
tromDOH
tromDSOH
AC Timing Specifications
Intel® PXA270 Processor
describes synchronous
addr
tromCD
tromAS
tromCES
32-bit Read
16-bit Burst Flash
Applies to:
mask
0b00
0/1
0
tromAVDVF
addr + 1
tromDOH
tromDSOH
tflashAVDVS
tromDOH
tromDSOH
6-23