S i 1 0 x x - D K
Rev. 0.1
19
10.7. Target Board DEBUG Interface (J9)
The DEBUG connector J9 provides access to the DEBUG (C2) pins of the Si10xx. It is used to connect the Serial
Adapter or the USB Debug Adapter to the target board for in-circuit debugging and Flash programming. Table 3
shows the DEBUG pin definitions.
10.8. Serial Interface (J12)
A USB-to-UART bridge circuit (U3) and USB connector (P3) are provided on the target board to facilitate serial
connections to UART0 of the Si10xx. The Silicon Labs CP2103 (U3) USB-to-UART bridge provides data
connectivity between the Si10xx and the PC via a USB port. The VIO power supply and TX, RX, RTS and CTS
signals of UART0 may be connected to the CP2103 by installing shorting blocks on header J12. The shorting block
positions for connecting each of these signals to the CP2103 are listed in Table 4. To use this interface, the USB-
to-UART device drivers should be installed as described in Section 3.2. "CP210x USB to UART VCP Driver
Installation‚" on page 2.
10.9. Analog I/O (H1)
Several of the Si10xx target device’s port pins are connected to the H1 terminal block. Refer to Table 5 for the H1
terminal block connections.
Table 3. DEBUG Connector Pin Descriptions
Pin #
Description
1
+3 VD (+3.3 VDC)
2, 3, 9
GND (Ground)
4
P2.7/C2D
5
RST (Reset)
6
P2.7
7
RST/C2CK
8
Not Connected
10
USB Power (+5 VDC from J9)
Table 4. Serial Interface Header (J12) Description
Header Pins UART0 Pin Description
J12[9–10]
CP2103_VIO (VDD/DC+)
J12[7–8]
TX_MCU (P0.5)
J12[5–6]
RX_MCU (P0.4)
J12[3–4]
RTS (P0.6)
J12[1–2]
CTS (P0.7)
Table 5. H1 Terminal Block Pin Descriptions
Pin #
Description
1
P0.6/CNVSTR
2
P0.7/IREF0
3
GND (Ground)
4
P0.0/V
REF
(Voltage Reference)
Summary of Contents for Si1000
Page 11: ...Si10xx DK Rev 0 1 11 Figure 7 Port I O Usage Matrix ...
Page 21: ...S i 10xx DK Rev 0 1 21 11 Schematics Figure 11 Si1000 Motherboard Schematic 1 of 3 ...
Page 22: ...Si 10xx DK 22 Rev 0 1 Figure 12 Si1000 Motherboard Schematic 2 of 3 ...
Page 23: ...S i 10xx DK Rev 0 1 23 Figure 13 Si1000 Motherboard Schematic 3 of 3 ...
Page 25: ...Si10xx DK Rev 0 1 25 NOTES ...
Page 27: ......