C8051T610DB24 Silicon Laboratories Inc, C8051T610DB24 Datasheet - Page 215
C8051T610DB24
Manufacturer Part Number
C8051T610DB24
Description
DAUGHTER BOARD T610 24QFN SOCKET
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051T610DB32.pdf
(218 pages)
Specifications of C8051T610DB24
Module/board Type
Socket Module - QFN
Processor To Be Evaluated
C8051T61x
Interface Type
USB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051T610DK
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
336-1507
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27.2. C2 Pin Sharing
The C2 protocol allows the C2 pins to be shared with user functions so that in-system debugging and
EPROM programming functions may be performed. This is possible because C2 communication is typi-
cally performed when the device is in the halt state, where all on-chip peripherals and user software are
stalled. In this halted state, the C2 interface can safely ‘borrow’ the C2CK (normally RST) and C2D pins. In
most applications, external resistors are required to isolate C2 interface traffic from the user application
when performing debug functions. These external resistors are not necessary for production boards. A typ-
ical isolation configuration is shown in Figure 27.1.
The configuration in Figure 27.1 assumes the following:
1. The user input (b) cannot change state while the target device is halted.
2. The RST pin on the target device is used as an input only.
Additional resistors may be necessary depending on the specific application.
/Reset (a)
Output (c)
Input (b)
Figure 27.1. Typical C2 Pin Sharing
C2 Interface Master
Rev 1.0
C8051T610/1/2/3/4/5/6/7
C2CK
C2D
215
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