參數(shù)資料
型號: 20-101-0358
廠商: Rabbit Semiconductor
文件頁數(shù): 29/94頁
文件大小: 0K
描述: COMPUTER SINGLE-BOARD BL1820
標(biāo)準(zhǔn)包裝: 1
系列: Jackrabbit
模塊/板類型: 單板計算機(jī)模塊
適用于相關(guān)產(chǎn)品: BL1820
產(chǎn)品目錄頁面: 618 (CN2011-ZH PDF)
其它名稱: 316-1081
User’s Manual
31
In addition to Serial Port A, the Rabbit 2000 startup-mode (SMODE0, SMODE1), status,
and reset pins are available on the serial programming port.
The two startup mode pins determine what happens after a reset—the Rabbit 2000 is
either cold-booted or the program begins executing at address 0x0000. These two
SMODE pins can be used as general inputs once the cold boot is complete.
The status pin is used by Dynamic C to determine whether a Rabbit microprocessor is
present. The status output has three different programmable functions:
1. It can be driven low on the first op code fetch cycle.
2. It can be driven low during an interrupt acknowledge cycle.
3. It can also serve as a general-purpose output.
The /RESET_IN pin is an external input that is used to reset the Rabbit 2000 and the
onboard peripheral circuits on the RabbitCore module. The serial programming port can be
used to force a hard reset on the RabbitCore module by asserting the /RESET_IN signal.
Refer to the Rabbit 2000 Microprocessor User’s Manual for more information.
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