79RC32V334-150BB IDT, Integrated Device Technology Inc, 79RC32V334-150BB Datasheet - Page 7

• Manufacturer Part Number: 79RC32V334-150BB
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 79RC32V334-150BB

• Family Name: RC32300
• Device Core Size: 32b
• Frequency (max): 150MHz
• Instruction Set Architecture: MIPS-II
• Supply Voltage 1 (typ): 3.3V
• Operating Supply Voltage (max): 3.465V
• Operating Supply Voltage (min): 3.135V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 256
• Package Type: BGA
• Lead Free Status / Rohs Status: Not Compliant

pci_rst_n
pci_devsel_n
pci_req_n[2]
pci_req_n[1]
pci_req_n[0]
pci_gnt_n[2]
pci_gnt_n[1] /
pci_eeprom_cs
pci_gnt_n[0]
pci_inta_n
pci_lock_n
1
2
SDRAM Control Interface
sdram_addr_12
sdram_ras_n
IDT 79RC32334—Rev. Y
Z in host mode; L in satellite non-boot mode; Z in satellite boot mode.
H in host mode; L in satellite non-boot and boot modes. X = unknown.
Name
collector
Output
Output
Output
Output
Type
Open-
Input
Input
Input
Input
I/O
I/O
I/O
I/O
X for 1 pci
clock then
Status
Reset
State
Z
H
Z
Z
Z
Z
Z
Z
H
L
L
1
2
Capability
Strength
Drive
High
High
High
High
High
High
PCI
PCI
—
—
—
—
PCI Reset Negated
Host mode: Resets all PCI related logic.
Satellite mode: Resets all PCI related logic and also warm resets the 32334.
PCI Device Select Negated
Driven by the target to indicate that the target has decoded the present address as a target address.
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 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 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 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 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 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 Interrupt #A Negated
Uses pci_gnt_n[2]. See the PCI subsection.
PCI Lock Negated
Driven by the Bus Master to indicate that an exclusive operation is occurring.
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 Negated
SDRAM mode: Provides SDRAM RAS control signal to all SDRAM banks.
Table 1 Pin Description (Part 3 of 7)
7 of 30
Description
August 31, 2004