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Functional Details
USB-4301 block diagram
USB-4301 functions are illustrated in the block diagram shown here.
USB
Full-speed
USB 2.0
Compliant
Interface
USB
Microcontroller
Interrupt Input
12 MHZ
Clock
Generator
Figure 1. USB-4301 functional block diagram
9513
Counter 1
Data Bus
Counter 2
Counter 3
Counter 4
1.0/1.67/
Counter 5
3.3/5.0 MHZ
Digital I/O
Digital
input
Digital
output
11
Chapter 3
CTR1 Input
CTR1 Gate
CTR2 Input
CTR2 Gate
CTR2 Output
CTR3 Gate
CTR3 Output
CTR4 Input
CTR4 Gate
CTR4 Output
CTR5 Input
CTR5 Gate
(7:0)
(7:0)
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