DLP-2232M-G DLP Design Inc, DLP-2232M-G Datasheet - Page 25

• Manufacturer Part Number: DLP-2232M-G
• Description: MODULE USB ADAPTER FOR FT2232D
• Manufacturer: DLP Design Inc

Specifications of DLP-2232M-G

• Main Purpose: Interface, USB 2.0 to UART (RS232) Bridge
• Embedded: No
• Utilized Ic / Part: FT2232D
• Primary Attributes: Full Speed USB to High-Speed UART
• Secondary Attributes: Royalty-Free Drivers, 2K EEPROM
• Interface Type: USB
• Data Bus Width: 8 bit
• Operating Supply Voltage: 4.35 V to 5.25 V
• Product: Interface Modules
• For Use With/related Products: FT2232D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 813-1000

9.8 MCU Host Bus Emulation Mode Signal Descriptions and Interface
Configuration
MCU host bus emulation mode uses both of the DLP2232M’s A and B channel interfaces
to make the chip emulate a standard 8048 / 8051 MCU host bus. This allows peripheral
devices for these MCU families to be directly connected to USB via the DLP2232M.
The lower 8 bits (AD7 to AD0) is a multiplexed Address / Data bus. A8 to A15 provide
upper (extended) addresses.
There are 4 basic operations:
1) Read (does not change A15 to A8)
2) Read Extended (changes A15 to A8)
3) Write (does not change A15 to A8)
4) Write Extended (changes A15 to A8)
Enabling
MCU Host Bus Emulation Mode enabled using the Set Bit-Bang Mode command.
Set_USB_Device_BitMode($00,$08) ; to enable it
Set_USB_Device_BitMode($00,$00) ; to reset it
Rev 1.6 (May 2009)
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DLP-2232M-G DLP Design, Inc.