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UPD703103A Datasheet(PDF) 34 Page - NEC

No. de Pieza. UPD703103A
Descripción  32-Bit Single-Chip Microcontrollers
Descarga  99 Pages
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Fabricante  NEC [NEC]
Página de inicio  http://www.nec.com/
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UPD703103A Datasheet(HTML) 34 Page - NEC

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CHAPTER 3 SPECIFICATIONS OF PCI HOST BRIDGE MACRO
Application Note U17121EJ1V1AN
34
3.3.3 PCI bus interface pins
Pin Name
I/O
Function
Active
I_PCLK
Input
PCI clock input
O_PCIRST_B
Output
PCI reset output
Low
I_AD0 to I_AD31
Input
PCI address/data input
O_AD0 to O_AD31
Output
PCI address/data output
EN_AD
Output
PCI address/data output enable output
(Output buffer enable of O_AD0 to O_AD31)
High
I_CBE0 to I_CBE3
Input
PCI command/byte enable input
Low
O_CBE0 to O_CBE3
Output
PCI command/byte enable output
Low
EN_CBE
Output
PCI command/byte enable output enable output
(Output buffer enable of O_CBE0 to O_CBE3)
High
I_FRAME_B
Input
PCI frame input
Low
O_FRAME_B
Output
PCI frame output
Low
EN_FRAME
Output
PCI frame output enable output
(Output buffer enable of O_FRAME_B)
High
I_IRDY_B
Input
PCI initiator ready input
Low
O_IRDY_B
Output
PCI initiator ready output
Low
EN_IRDY
Output
PCI initiator ready output enable output
(Output buffer enable of O_IRDY_B)
High
I_DEVSEL_B
Input
PCI device select input
Low
O_DEVSEL_B
Output
PCI device select output
Low
EN_DEVSEL
Output
PCI device select output enable output
(Output buffer enable of O_DEVSEL_B)
High
I_TRDY_B
Input
PCI target ready input
Low
O_TRDY_B
Output
PCI target ready output
Low
EN_TRDY
Output
PCI target ready output enable output
(Output buffer enable of O_TRDY_B)
High
I_STOP_B
Input
PCI stop input
Low
O_STOP_B
Output
PCI stop output
Low
EN_STOP
Output
PCI stop output enable output
(Output buffer enable of O_STOP_B)
High
I_PAR
Input
PCI parity input
O_PAR
Output
PCI parity output
EN_PAR
Output
PCI parity output enable output
(Output buffer enable of O_PAR)
High
I_PERR_B
Input
PCI parity error input
Low
O_PERR_B
Output
PCI parity error output
Low
EN_PERR
Output
PCI parity error output enable output
(Output buffer enable of O_PERR_B)
High
I_SERR_B
Input
PCI system error input
Low
I_REQ_B1 to I_REQ_B7
Input
PCI request input
Low
O_GNT_B1 to O_GNT_B7
Output
PCI grant output
Low


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