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參數(shù)資料
| 型號(hào)： | TMPR3927F |
| 廠商： | Toshiba Corporation |
| 英文描述： | 32 Bit TX39 Family System RISC Microprocessor(32位TX39系列精簡(jiǎn)指令集系統(tǒng)計(jì)算機(jī)微處理器) |
| 中文描述： | 32位TX39家庭系統(tǒng)RISC微處理器（32位TX39系列精簡(jiǎn)指令集系統(tǒng)計(jì)算機(jī)微處理器） |
| 文件頁數(shù)： | 10/22頁 |
| 文件大小： | 272K |
| 代理商： | TMPR3927F |
TAEC_rev4_11-Jan-2000 10/22
TMPR3927F
TENTATIVE
REQ*[3:0]
I/O
Request PCI bus
In internal arbiter mode, REQ*[3:0] are inputs.
In external arbiter mode, REQ*[0] is an output, REQ*[1] is an interrupt output, and
REQ*[3:2] are unused.
GNT*[3:0]
I/O
Grant PCI bus
In internal arbiter mode, GNT*[3:0] are outputs.
In external arbiter mode, GNT*[0] is an input and GNT*[3:1] are unused.
PCICLK[3:0]
I/O
PCICLK[0] becomes input when PCICLKEN is disabled.
PCICLK[3:1] are tri-state outputs.
PERR*
I/O
Data Parity Error
Reports parity error on all transactions except Special Cycle command.
ID_SEL
I
Initialization Device select
Used as chip select during configuration read/write transaction on PCI bus.
SERR*
I/O
System Error
Reports errors for all address parity errors and data parity error on Special Cycle
commands, and may optionally be used to report any other non-parity or system
errors.
DMA Interface
DMAREQ[3:0]
I
DMA Request
DMA request from an external device. Signals are software assigned and shared
with PIO/TIMER and SDCS_CE[7] functions. Signal is connected to internal pull-up
resistor.
DMAACK[3:0]
O
DMA Acknowledge
DMA acknowledge to external devices. Signals are software assigned and shared
with PIO/TIMER and SDCS_CE[6] functions. Signal is connected to internal pull-up
resistor.
DMADONE*
I/O
DMA Transfer/Chain Finished
Signal is connected to internal pull-up resistor.
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