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參數(shù)資料
| 型號： | 79RC32334 |
| 廠商： | Integrated Device Technology, Inc. |
| 英文描述： | IDT Interprise Integrated Communications Processor |
| 中文描述： | IDT的洽談會集成通信處理器 |
| 文件頁數(shù)： | 7/30頁 |
| 文件大?。?/td> | 467K |
| 代理商： | 79RC32334 |
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7 of 30
August 31, 2004
IDT 79RC32334—Rev. Y
pci_rst_n
Input
L
—
PCI Reset Negated
Host mode: Resets all PCI related logic.
Satellite mode: Resets all PCI related logic and also warm resets the 32334.
pci_devsel_n
I/O
Z
PCI
PCI Device Select Negated
Driven by the target to indicate that the target has decoded the present address as a target address.
pci_req_n[2]
Input
Z
—
PCI Bus Request #2 Negated
Requires external pull-up.
Host mode: pci_req_n[2] is an input indicating a request from an external device.
Satellite mode: used as pci_idsel pin which selects this device during a configuration read or write.
Alternate function: pci_idsel (satellite).
pci_req_n[1]
Input
Z
—
PCI Bus Request #1 Negated
Requires external pull-up.
Host mode: pci_req_n[1] is an input indicating a request from an external device.
Alternate function: Unused (satellite).
pci_req_n[0]
I/O
Z
High
PCI Bus Request #0 Negated
Requires external pull-up for burst mode.
Host mode: pci_req_n[0] is an input indicating a request from an external device.
Satellite mode: pci_req_n[0] is an output indicating a request from this device.
pci_gnt_n[2]
Output
Z
1
High
PCI Bus Grant #2 Negated
Recommend external pull-up.
Host mode: pci_gnt_n[2] is an output indicating a grant to an external device.
Satellite mode: pci_gnt_n[2] is used as the pci_inta_n output pin.
Alternate function: pci_inta_n (satellite).
pci_gnt_n[1] /
pci_eeprom_cs
I/O
X for 1 pci
clock then
H
2
High
PCI Bus Grant #1 Negated
Recommend external pull-up.
Host mode: pci_gnt_n[1] is an output indicating a grant to an external device.
Satellite mode: Used as pci_eprom_cs output pin for Serial Chip Select for loading PCI Configuration
Registers in the RC32334 Reset Initialization Vector PCI boot mode. Defaults to the output direction at
reset time.
1st Alternate function: pci_eeprom_cs (satellite).
2nd Alternate function: PIO[11].
pci_gnt_n[0]
I/O
Z
High
PCI Bus Grant #0 Negated
Host mode: pci_gnt_n[0] is an output indicating a grant to an external device. Recommend external pull-
up.
Satellite mode: pci_gnt_n[0] is an input indicating a grant to this device. Require external pull-up.
pci_inta_n
Output
Open-
collector
Z
PCI
PCI Interrupt #A Negated
Uses pci_gnt_n[2]. See the PCI subsection.
pci_lock_n
Input
—
PCI Lock Negated
Driven by the Bus Master to indicate that an exclusive operation is occurring.
1
Z in host mode; L in satellite non-boot mode; Z in satellite boot mode.
2
H in host mode; L in satellite non-boot and boot modes. X = unknown.
SDRAM Control Interface
sdram_addr_12
Output
L
High
SDRAM Address Bit 12 and Precharge All
SDRAM mode: Provides SDRAM address bit 12 (10 on the SDRAM chip) during row address and "pre-
charge all" signal during refresh, read and write command.
sdram_ras_n
Output
H
High
SDRAM RAS Negated
SDRAM mode: Provides SDRAM RAS control signal to all SDRAM banks.
Name
Type
Reset
State
Status
Drive
Strength
Capability
Description
Table 1 Pin Description (Part 3 of 7)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 79RC32334-100BB | IDT Interprise Integrated Communications Processor |
| 79RC32334-100BBG | IDT Interprise Integrated Communications Processor |
| 79RC32334-100BBGI | IDT Interprise Integrated Communications Processor |
| 79RC32334-100BBI | IDT Interprise Integrated Communications Processor |
| 79RC32334-133BB | IDT Interprise Integrated Communications Processor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 79RC32334-100BB | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:IDT Interprise Integrated Communications Processor |
| 79RC32334-100BBG | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:IDT Interprise Integrated Communications Processor |
| 79RC32334-100BBGI | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:IDT Interprise Integrated Communications Processor |
| 79RC32334-100BBI | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:IDT Interprise Integrated Communications Processor |
| 79RC32334-133BB | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:IDT Interprise Integrated Communications Processor |
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