参数资料
型号: RTPXA270C0C312
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 312 MHz, RISC PROCESSOR, PBGA356
封装: 13 X 13 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, VFBGA-356
文件页数: 115/128页
文件大小: 1560K
代理商: RTPXA270C0C312
Electrical, Mechanical, and Thermal Specification
6-23
Intel PXA270 Processor
AC Timing Specifications
6.4.4
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.
6.4.4.1
Flash Memory Read Parameters and Timing Diagrams
Section 6.4.4.1.1 describes asynchronous flash reads. Section 6.4.4.1.2 describes synchronous
flash reads.
6.4.4.1.1
Asynchronous Flash Read Parameters and Timing Diagrams
The timings listed in Table 6-16 for ROM reads also apply to asynchronous flash reads. See
Figure 6-11, Figure 6-12, Figure 6-13, and Figure 6-14 for timings diagrams representative of an
asynchronous flash read.
Figure 6-14. 16-bit ROM/Flash/SRAM Read for 4/2/1 Bytes Timing
addr
addr + 1
addr
addr + 1
0
0/1
0b00
mask
tflashAVDVS
tromAVDVF
tromAVDVS
tromAVDVF
tromCD
tromDOH
tromDSOH
tromDOH
tromDSOH
tromDOH
tromDSOH
tromDOH
tromDSOH
tromDOH
tromDSOH
tromDOH
tromDSOH
tromCES
tromCEH
tromCES
tromAS
32-bit read
NOTE: MSC0[RDF0] = 2, MSC0[RDN0] = 1, MSC0[RRR0] = 1
16-bit read
8-bit read
Applies to:
16-bit ROM or
non-burst flash
16-bit SRAM
Applies to:
16-bit ROM or
non-burst flash
16-bit SRAM
16-bit burst flash
Applies to:
16-bit ROM or
non-burst flash
16-bit SRAM
16-bit burst flash
32-bit Read
Applies to:
16-bit Burst Flash
CLK_MEM
nCS<0>
MA<25:1>
MA<0>(SA1110x='0')
MA<0>(SA1110x='1')
nADV(nSDCAS)
nOE
nWE
RDnWR
MD<15:0>
DQM<1:0>(SA1110x='0')
DQM<1:0>(SA1110x='1')
相关PDF资料
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