CY7C64713 Datasheet, PDF (8/55 Pages) Cypress Semiconductor – EZ-USB FX1 USB Microcontroller Full Speed USB Peripheral Controller

CY7C64713
External Code Memory, EA = 1
The bottom 16 KBytes of program memory is external, and therefore the bottom 16 KBytes of internal RAM is accessible only as
data memory.
Figure 4. External Code Memory, EA = 1
Inside FX1
Outside FX1
FFFF
7.5 KBytes
USB regs and
4K FIFO buffers
(RD#,WR#)
E200
E1FF _{0.5 KBytes RAM}
E000 ^{Data (RD#,WR#)*}
(OK to populate
data memory
here—RD#/WR#
strobes are not
active)
3FFF
16 KBytes
RAM
Data
(RD#,WR#)*
40 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 interface boot access
Figure 5. Register Addresses
FFFF
4 KBytes EP2-EP8
buffers
(8 x 512)
Not all Space is available
for all transfer types
F000
EFFF
E800
E7FF
E7C0
E7BF
E780
E77F
E740
E73F
E700
E6FF
E500
E4FF
E480
E47F
E400
E3FF
E200
E1FF
2 KBytes RESERVED
64 Bytes EP1IN
64 Bytes EP1OUT
64 Bytes EP0 IN/OUT
64 Bytes RESERVED
8051 Addressable Registers
(512)
Reserved (128)
128 bytes GPIF Waveforms
Reserved (512)
512 bytes
E000
8051 xdata RAM
Document #: 38-08039 Rev. *F
Page 8 of 55
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