參數(shù)資料
型號: LH0E776
英文描述: ARM START-UP KIT WITH EMBEDDED Linux
中文描述: ARM的啟動時(shí)用嵌入式Linux的套裝
文件頁數(shù): 6/8頁
文件大?。?/td> 244K
代理商: LH0E776
LH0E776 Summary Specification
Ver. 1.00
September 30, 2002
5
5. External Interface
Ethernet interface
LH0E776 board includes an Ethernet controller IC and can provide Ethernet 10Base-T
communication.
Table 3. Ethernet connecter pin assignment.
RJ45 pin
1
2
3
6
4,5,7,8,9,10
UART(RS232C) interface
LH79532 has 2 UART channels and therefore LH0E776 board has 2 D-SUB 9 pin plug which acts
as RS232C ports.
Channel 0 of CN1 provides RXD, TXD signals and RTS, CTS signals as modem control signal.
Channel 1 of CN2 provides only RXT, TXD signals.
Table 4. RS232C connecter pin assignment.
RS232C pin
2
3
5
7
8
1,4,6,9
JTAG interface
There is a 20 pin connector for JTAG-ICE debugging.
Table 5. JTAG connecter pin assignment.
JTAG pin
1,2
3
5
7
9
13
15
17,19
4,6,8,10,11,12,14,16,18,17,19,20 GND
External expansion interface
LH0E776 board has two external expansion interfaces (CN5-60pin, CN6-36pin). The external
expansion interfaces provide address bus, data bus, memory control signals, LCD panel signals,
PIO signals of the LH79532 and also provide power resource (3,3V and 5.0V) and GND. See the
Table 6 and Table 7 in detail.
It is possible to use the PIOs as SPI, INTC, PWM, TIMER, DMA signals by internal
multiplexing LH79532.
Function
ERX-
ERX+
ETX-
ETX+
NC
Function
RXD
TXD
GND
RTS (Channel 0 only)
CTS (Channel 0 only)
NC
Function
SPU
NTRST
TDI
TMS
TCK
TDO
NSRST
NC
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