FT200XD-R FTDI, FT200XD-R Datasheet - Page 35

• Manufacturer Part Number: FT200XD-R
• Description: USB Interface IC USB to I2C IC DFN-10
• Manufacturer: FTDI

Specifications of FT200XD-R

• Rohs: yes
• Product: USB 2.0
• Data Rate: 12 Mbps, 480 Mbps
• Interface Type: I2C, USB
• Operating Supply Voltage: 2.97 V to 5.5 V
• Operating Supply Current: 6.8 mA to 9.1 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: DFN-10
• Tradename: X-Chip

to determine if the MTP memory write was successful should immediately try an MTP memory read to
verify the new contents.
This process of writing to the MTP memory is shown below:
Figure 10.2 Write EEPROM command sequence
Reading
In a similar way, the read is carried out as shown below.The first part of the communication sets the
address, and this is followed by the read command and a read cycle used to retrieve the data read back
from that address.
An MTP memory read will be initiated when the I
acknowledge during the command phase indicates whether or not the MTP memory will be able to service
the read request. If it is possible to carry out the read, the I
either continue with the read transaction until the slave successful returns an ACK along with the data or
if it receives NAK during the data phase it can abort the read transfer and try again.
Figure 10.3 Read EEPROM command sequence
S/Sr General call addr R/!W
S/Sr General call addr R/!W
S/Sr General call addr R/!W
S/Sr General call addr R/!W
0000000
0000000
0000000
0000000
Copyright © 2013 Future Technology Devices International Limited
0
0
0
0
A
A
A
A
MTP ADDR cmd
MTP ADDR cmd
MTP WR cmd
MTP WR cmd
0001_0000
0001_0010
0001_0000
0001_0100
A/!A
A/!A
A/!A
A/!A
MTP Memory Address Phase
MTP Memory Address Phase
MTP memory Write Phase
MTP memory Read Phase
Sr
Sr
Sr
Sr
2
C slave receives an MTP read command. The
FT200XD USB I2C SLAVE IC Datasheet
Slave addr
Slave addr
Slave addr
Slave addr
Document No.: FT_000628 Clearance No.: FTDI# 265
2
C moves into the data phase where it can
R/!W
R/!W
R/!W
R/!W
0
0
0
1
A
A
A
A
MTP WR DATA
MTP WR DATA
MTP ADR MSB
MTP ADR MSB
A
A
A
A
P/Sr
P/Sr
MTP ADR LSB
MTP ADR LSB
Version 1.3
35
A
A