IDT79RC32V332-133DH IDT, Integrated Device Technology Inc, IDT79RC32V332-133DH Datasheet - Page 7

• Manufacturer Part Number: IDT79RC32V332-133DH
• Description: IC PROC 32BIT CPU 133MHZ 208-QFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: Interprise™r

Specifications of IDT79RC32V332-133DH

• Processor Type: RISC 32-Bit
• Speed: 133MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 208-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Other names: 79RC32V332-133DH

IDT 79RC32332
pci_req_n[2]
pci_req_n[0]
pci_gnt_n[2]
pci_gnt_n[1]
(can only be used as
alternate function)
pci_gnt_n[0]
pci_inta_n
pci_lock_n
1
2
SDRAM Control Interface
sdram_addr_12
sdram_ras_n
sdram_cas_n
sdram_we_n
sdram_cke
sdram_cs_n[3:0]
sdram_s_n[1:0]
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
Output
Output
Output
Output
Output
Output
Output
Output
Output
Type
Open-
collec-
Input
Input
I/O
I/O
I/O
tor
X for 1 pci
clock then
Status
Reset
State
Z
H
H
H
H
H
H
H
Z
Z
Z
Z
L
1
2
Capability
Strength
Drive
High
High
High
High
High
High
High
High
High
High
High
PCI
—
—
PCI Bus Request #2 Negated Requires an 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 #0 Negated Requires an 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 an 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. External pull-up is required.
Alternate function: pci_inta_n (satellite).
PCI Bus Grant #1 Negated Recommend external pull-up.
Host mode: not used as pci_gnt_n[1]. Must be used as alternate function PIO[7].
Satellite mode: Not used as pci_gnt_n[1]. Used as pci_eprom_cs output pin for Serial Chip Select for
loading PCI Configuration Registers in the RC32332 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[7].
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. Requires 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.
SDRAM CAS Negated
SDRAM mode: Provides SDRAM CAS control signal to all SDRAM banks.
SDRAM WE Negated
SDRAM mode: Provides SDRAM WE control signal to all SDRAM banks.
SDRAM Clock Enable
SDRAM mode: Provides clock enable to all SDRAM banks.
SDRAM Chip Select Negated Bus Recommend an external pull-up.
SDRAM mode: Provides chip select to each SDRAM bank.
SODIMM mode: Provides upper select byte enables [7:4].
SDRAM SODIMM Select Negated Bus
SDRAM mode: Not used.
SDRAM SODIMM mode: Upper and lower chip selects.
Table 1 Pin Descriptions (Part 3 of 6)
7 of 30
Description
May 4, 2004