Document Reference No.: FT_000030
Vinculum VNC1L Embedded USB Host Controller IC Datasheet Version 2.01
Clearance No.: FTDI# 50
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VNC1L Block Diagram
USB1DP
USB1DM
USB Host/Slave
Transceiver 1
USB Host/Slave
SIE 1
UART
PRESCALER
UART & FIFO
I/F LOGIC
ADBUS[0...7]
48 MHz
USB2DP
USB2DM
USB Host/Slave
Transceiver 2
USB Host/Slave
SIE 2
SPI I/F
LOGIC
SYSTEM
TIMER
INT
XTOUT
12MHz
Oscillator
XTIN
DMA Controller
1
24 MHz
GPIO 0
I/F LOGIC
INT
Vinculum MCU
Core
DMA Controller
2
NMI
GPIO 1
I/F LOGIC
BDBUS[0...7]
64k x 8
E-FLASH
Program ROM
GPIO 2
I/F LOGIC
ACBUS[0...7]
24MHz
PLL FILTER
Clock
Multiplier
PLL
48MHz
4k x 8
DATA SRAM
PROG#
Program and
Test Logic
Vinculum
32-Bit NPU
TEST
RESET#
BOOTSTRAP
Loader
ROM
BCBUS[0...3]
GPIO 3
I/F LOGIC
INTERNAL IO BUS
INTERNAL IO BUS
EXTERNAL IO BUS
Figure 2.1 Simplified VNC1L Block Diagram
For a functional description of each block, please refer to Section 4.2
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