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CP2201 Scheda tecnica(PDF) 74 Page - Silicon Laboratories

Il numero della parte CP2201
Spiegazioni elettronici  SINGLE-CHIP ETHERNET CONTROLLER
PDF  108 Pages
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Produttore elettronici  SILABS [Silicon Laboratories]
Homepage  http://www.silabs.com
Logo SILABS - Silicon Laboratories

CP2201 Scheda tecnica(HTML) 74 Page - Silicon Laboratories

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CP2200/1
74
Rev. 1.0
13.2. Reading the Flash Memory
Flash reads occur much faster than Flash write or erase operations and are completed within the minimum read
strobe time specified by the parallel host interface. Flash is read using the FLASHADDRH:FLASHADDRL,
FLASHDATA, and FLASHAUTORD registers. The FLASHAUTORD register provides an efficient method of
accessing sequential data in Flash by automatically incrementing the Flash address pointer after each read.
13.2.1. Flash Read Procedure
Step 1: Set FLASHADDRH:FLASHADDRL to the address of the byte to be read.
Step 2: Read the value of the byte from FLASHDATA.
13.2.2. Multiple Byte Flash Read Procedure
Step 1: Set FLASHADDRH:FLASHADDRL to the address of the first byte to be read.
Step 2: For each byte, read the value from FLASHAUTORD.
Table 18. Flash Electrical Characteristics
VDD = 3.1 to 3.6 V, –40 to +85 °C unless otherwise specified.
Parameters
Conditions
Min
Typ
Max
Units
Flash Size
8192
—
—
bytes
Endurance
20k
100k
—
Erase/
Write
Erase Cycle Time
—
11
—
ms
Write Cycle Time
40
55
70
µs



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