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CY3687 Datasheet(PDF) 11 Page - Cypress Semiconductor

Part # CY3687
Description  MoBL-USB??FX2LP18 USB Microcontroller
Download  42 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY3687 Datasheet(HTML) 11 Page - Cypress Semiconductor

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CY7C68053
Document # 001-06120 Rev *J
Page 11 of 42
3.18.2 I2C Interface Boot Load Access
At power on reset the I2C interface boot loader loads the
VID/PID/DID and configuration bytes and up to 16 kBytes of
program/data. The available RAM spaces are 16 kBytes from
0x0000–0x3FFF and 512 bytes from 0xE000–0xE1FF. The 8051
is reset. I2C interface boot loads only occur after power on reset.
3.18.3 I2C Interface General Purpose Access
The 8051 can control peripherals connected to the I2C bus using
the I2CTL and I2DAT registers. FX2LP18 provides I2C master
control only, it is never an I2C slave.
4. Pin Assignments
Figure 6 identifies all signals for the package. It is followed by the
pin diagram.Three modes are available: Port, GPIF master, and
Slave FIFO. These modes define the signals on the right edge
of the diagram. The 8051 selects the interface mode using the
IFCONFIG[1:0] register bits. Port mode is the power on default
configuration.
Table 6. Strap Boot EEPROM Address Lines to These
Values
Bytes
Example EEPROM
A2
A1
A0
16
24AA00[8]
N/A
N/A
N/A
128
24AA01
0
0
0
256
24AA02
0
0
0
4K
24AA32
0
0
1
8K
24AA64
0
0
1
16K
24AA128
0
0
1
Note
8. This EEPROM does not have address pins.
XTALIN
XTALOUT
RESET#
WAKEUP#
SCL
SDA
IFCLK
CLKOUT
DPLUS
DMINUS
RDY0
RDY1
CTL0
CTL1
CTL2
INT0#/PA0
INT1#/PA1
PA2
WU2/PA3
PA4
PA5
PA6
PA7
FD[15]
FD[14]
FD[13]
FD[12]
FD[11]
FD[10]
FD[9]
FD[8]
FD[7]
FD[6]
FD[5]
FD[4]
FD[3]
FD[2]
FD[1]
FD[0]
SLRD
SLWR
FLAGA
FLAGB
FLAGC
INT0#/PA0
INT1#/PA1
SLOE
WU2/PA3
FIFOADR0
FIFOADR1
PKTEND
PA7/FLAGD/SLCS#
FD[15]
FD[14]
FD[13]
FD[12]
FD[11]
FD[10]
FD[9]
FD[8]
FD[7]
FD[6]
FD[5]
FD[4]
FD[3]
FD[2]
FD[1]
FD[0]
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
INT0#/PA0
INT1#/PA1
PA2
WU2/PA3
PA4
PA5
PA6
PA7
Port
GPIF Master
Slave FIFO
Figure 6. Signals
[+] Feedback


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