FT121T-U Datasheet, PDF (32/46 Pages) Future Technology Devices International Ltd. – Future Technology Devices International Ltd.

6.4.4 Read Vendor ID
Document No.: FT_000648
FT121 ENHANCED USB DEVICE CONTROLLER WITH SPI SLAVE IC
Datasheet Version 1.2
Clearance No.: FTDI# 312
Command
Data
: EBh (for Enhanced Mode)
: read 2 bytes
Read the 2 bytes Vendor ID. Shall return 0403h.
6.4.5 Read Product ID
Command
Data
: EAh (for Enhanced Mode)
: read 2 bytes
Read the 2 bytes Product ID. Shall return 6018h.
6.4.6 Read FTDI ID
Command
Data
: EDh (for Enhanced Mode)
: read 1 byte
Read the 1 byte FTDI ID. Shall return 11h.
6.4.7 Set IO Pad Drive Strength
Command
Data
: E9h
: Write 1 byte
Bit
Symbol
1-0 Reserved
3-2 MISO, MOSI pins
Reset
0b’00
0b’00
5-4 INT_n, SUSPEND pins
0b’00
7-6 Reserved
0b’00
Table 6.20 IO Pad Drive Strength Register
Description
Reserved, write to 0b’00
00: 4mA
01: 8mA
10: 12mA
11:16mA
00: 4mA
01: 8mA
10: 12mA
11:16mA
Reserved, write to 0b’00
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