cp2200 Silicon Laboratories, cp2200 Datasheet - Page 74

• Manufacturer Part Number: cp2200
• Description: Single-chip Ethernet Controller
• Manufacturer: Silicon Laboratories

CP2200/1
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
13.2.2. Multiple Byte Flash Read Procedure
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Table 18. Flash Electrical Characteristics
V
Flash Size
Endurance
Erase Cycle Time
Write Cycle Time
DD
= 3.1 to 3.6 V, –40 to +85 °C unless otherwise specified.
Step 1: Set FLASHADDRH:FLASHADDRL to the address of the byte to be read.
Step 2: Read the value of the byte from FLASHDATA.
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.
Parameters
Conditions
Rev. 1.0
8192
Min
20k
40
—
100k
Typ
55
—
11
Max
70
—
—
—
Erase/
Units
bytes
Write
ms
µs