參數(shù)資料
型號(hào)： 20-101-0358
廠商： Rabbit Semiconductor
文件頁(yè)數(shù)： 69/94頁(yè)
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(jì)算機(jī)模塊
適用于相關(guān)產(chǎn)品： BL1820
產(chǎn)品目錄頁(yè)面： 618 (CN2011-ZH PDF)
其它名稱： 316-1081
User’s Manual
67
As shown in Table A-3, pins PE4 and PE5 can instead be used as external INT0B and
INT1B interrupts. Pins PD6 and PD7 can instead be used to access Serial Port A on the
Rabbit 2000 microprocessor. Pins PB0 and PB1 can instead be used to access the clock on
Serial Port B and Serial Port A of the Rabbit 2000 microprocessor.
The four output-only pins are located on PB6–PB7, PCLK, and IOBEN. PB7 can also be
used with the slave port of the Rabbit 2000 microprocessor. The primary function of
PCLK is as a peripheral clock or a peripheral clock ÷ 2, but PCLK can instead be used as
a digital output. Similarly, IOBENB is an I/O buffer enable, but can instead be used as a
digital output. STAT and WDO also have limited uses as digital outputs.
PD0
Bitwise or parallel
programmable I/O,
can be driven or open-
drain output
PD1
Connected to control
DA0
PD2
Connected to control
DA0
PD3
PD4
ATXB output
Connected to control
DA1
PD5
ARXB input
Connected to RS-485 IC
data enable input
PD6
ATXA output
PD7
ARXA input
PE0
Bitwise or parallel
programmable I/O
I0 output or INT0A input HV0 output control
PE1
I1 output or INT1A input HV1 output control
PE2
I2 output
HV2 output control
PE3
I3 output
HV3 output control
PE4
I4 output or external
INT0B input
PE5
I5 output or external
INT1B input
PE6
I6 output
Connected to A/D
comparator output
PE7
I7 output or slave port
chip select /SCS
Connected to A/D
comparator output
PCLK
Peripheral clock
Output
IOBEN
I/O buffer enable
Output
WDO
Watchdog output
Single low pulse output
STAT
Status
Output
Connected to
programming port
Table A-3. Jackrabbit Pinout Configurations (continued)
Pin
Rabbit 2000
Factory Default
Alternate Use
Jackrabbit Use
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