參數(shù)資料
型號: IDT79RC32K438-300BBG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 57/59頁
文件大?。?/td> 0K
描述: IC MPU 32BIT CORE 300MHZ 416-BGA
標準包裝: 40
系列: Interprise™
處理器類型: MIPS32 32-位
速度: 300MHz
電壓: 1.3V
安裝類型: 表面貼裝
封裝/外殼: 416-BGA
供應商設備封裝: 416-PBGA(27x27)
包裝: 托盤
其它名稱: 79RC32K438-300BBG
7 of 59
May 25, 2004
IDT 79RC32438
PCIREQN[3:0]
I/O
PCI Bus Request.
In PCI host mode with internal arbiter:
These signals are inputs whose assertion indicates to the internal RC32438
arbiter that an agent desires ownership of the PCI bus.
In PCI host mode with external arbiter:
PCIREQN[0]: asserted by the RC32438 to request ownership of the PCI bus.
PCIREQN[3:1]: unused and driven high.
In PCI satellite mode:
PCIREQN[0]: this signal is asserted by the RC32438 to request use of the PCI
bus.
PCIREQN[1]: function changes to PCIIDSEL and is used as a chip select during
configuration read and write transactions.
PCIREQN[3:2]: unused and driven high.
Note: When the GPIO register is programmed in the alternate function mode for
bits GPIO [24] and [27], these bits become PCIREQN [4] and [5] respectively.
PCIRSTN
I/O
PCI Reset. In host mode, this signal is asserted by the RC32438 to generate a
PCI reset. In satellite mode, assertion of this signal initiates a warm reset.
PCISERRN
I/O
PCI System Error. This signal is driven by an agent to indicate an address par-
ity error, data parity error during a special cycle command, or any other system
error. Requires an external pull-up.
PCISTOPN
I/O
PCI Stop. Driven by the bus target to terminate the current bus transaction. For
example, to indicate a retry.
PCITRDYN
I/O
PCI Target Ready. Driven by the bus target to indicate that the current data can
complete.
General Purpose Input/Output
GPIO[0]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: U0SOUT
Alternate function: UART channel 0 serial output.
GPIO[1]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: U0SINP
Alternate function: UART channel 0 serial input.
GPIO[2]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: U0RIN
Alternate function: UART channel 0 ring indicator input.
GPIO[3]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: U0DCDN
Alternate function: UART channel 0 data carrier detect input.
GPIO[4]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: U0DTRN
Alternate function: UART channel 0 data terminal ready input.
GPIO[5]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: U0DSRN
Alternate function: UART channel 0 data set ready input.
Signal
Type
Name/Description
Table 1 Pin Description (Part 4 of 9)
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