CY3681 Просмотр технического описания (PDF) - Cypress Semiconductor

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CY3681

EZ-USB FX2™ USB Microcontroller

Cypress Semiconductor 

Inside FX2

FFFF

7.5 kbytes

US B regs and

4k EP buffers

(RD#,WR#)

E200

E1FF 0.5 kbytes RAM

E000 Data (RD#,WR#)*

Outside FX2

(OK to populate

data memory

here—RD#/WR#

strobes are not

active)

48 kbytes

External

Data

Memory

(RD#,WR#)

56 kbytes

External

Code

Memory

(PSEN#)

1FFF

Eight kbytes RAM

Code and Data

(PSEN#,RD#,WR#)*

(Ok to populate

data memory

here—RD#/WR#

strobes are not

active)

(OK to populate

program

memory here—

PSEN# strobe

is not active)

0000

Data

Code

*SUDPTR, USB upload/download, I2C-compatible interface boot access

Figure 3-1. Internal Code Memory, EA = 0

CY7C68013

Inside FX2

FFFF

7.5 kbytes

USB regs and

4k EP buffers

(RD#,WR#)

E200

E1FF 0.5 kbytes RAM

E000 Data (RD#,WR#)*

1FFF

Eight kbytes

RAM

Data

(RD#,WR#)*

Outside FX2

(OK to populate

data memory

here—RD#/WR#

strobes are not

active)

48 kbytes

External

Data

Memory

(RD#,WR#)

64 kbytes

External

Code

Memory

(PSEN#)

(Ok to populate

data memory

here—RD#/WR#

strobes are not

active)

0000

Data

Code

*SUDPTR, USB upload/download, I2C-compatible interface boot access

Figure 3-2. External Code Memory, EA = 1

Document #: 38-08012 Rev. *E

Page 6 of 48

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