参数资料
| 型号： | P0006 |
| 厂商： | Terasic Technologies Inc |
| 文件页数： | 12/26页 |
| 文件大小： | 0K |
| 描述： | BOARD ADAPTER THDB-SUM |
| 标准包装： | 1 |
| 附件类型： | 适配器板 |
| 适用于相关产品： | 带 HSMC 连接器的线路板 |
| 产品目录页面： | 607 (CN2011-ZH PDF) |
| 相关产品： | P0528-ND - BOARD DEV DE1 ALTERA P0304-ND - DE2-70 CALL FOR ACADEMIC PRICING P0301-ND - DE2 CALL FOR ACADEMIC PRICING |
Board Components
3.2 Santa Cruz Connector
This section describes the Santa Cruz connector on the THDB-SUM board
The THDB-SUM board comes with Santa Cruz connectors (J3, J4 and J5) to connect to a daughter board with
Santa Cruz interface. On the THDB-SUM, the pin of SC connector not directly connects with HSMC connector.
Owing to the limitation of number of HSMC connector I/O pins, SC connector and USB transceiver share some
I/O pins together, Please refer to Figure 3.5 , those I/O pass through a Bus Switch chip first and then connect with
HSMC connector. Therefore users can only choose one function between SC connector and USB transceiver.
Users can refer to Table3.1 and use JP2 to choose a function
In addition, from the Figure 3.6 , there are several level shift chips between HSMC and SC. Theses level shift
chips convert the logic levels of the signals between the HSMC and Santa Cruz connectors according to the
configurations of the headers (JP3, JP4). With this feature, users can use different I/O standards between the
HSMC host board and SC interface daughter board. Table 3.2 and Table 3.3 list the configurations of the voltage
level of the HSPROTO_IO BUS and the PROTO_IO BUS, respectively.
HSMC Connector (J1)
HSPROTO_CARDSEL
HSPROTO_IO[40..15]
PROTO_RESET
PROTO_CARDSEL
27
Level
Shifters
(U3~U8)
PROTO_IO[40..0]
43
Santa Cruz
Connectors
(J3~J5)
SWPROTO_RESET
SWPROTO_IO[14..0]
HSPROTO_RESET
HSPROTO_IO[14..0]
BUS
16
USB_D[7..0]
16
Switches
(U1~U2)
USB_CS_n
USB_CLKOUT
USB OTG
Transceiver
14
USB_STP
USB_DIR
(U11)
DEV_SEL
JP1
Open : USB
USB_NXT
USB_RESET_n
Close : Santa Cruz
Figure 3.5. The I/O distribution of the HSMC, Santa Cruz, and USB transceiver interface.
Table 3.1 The configuration of the Enable function on bus switch chip
JP1 setting
Open
Close
10
Enable Function
USB OTC Transceiver
Santa Cruz conenctor
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