參數(shù)資料
型號: 5962R0722402VYC
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PQFP256
封裝: QFP-256
文件頁數(shù): 24/155頁
文件大小: 4139K
代理商: 5962R0722402VYC
12
7703D–AERO–12/09
AT697F PRELIMINARY INFORMATION
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A low-to-high transition on this active high input will generate break condition and put the pro-
cessor in debug mode.
DSUEN - DSU enable (input)
The active high input enables the DSU unit. If de-asserted, the DSU trace buffer will continue to
operate but the processor will not enter debug mode.
DSURX - DSU receiver (input)
This active high input provides the data to the DSU communication link receiver
DSUTX - DSU transmitter (output)
This active high input provides the output from the DSU communication link transmitter.
JTAG
TCK - Test Clock (input)
Used to clock serial data into boundary scan latches and control sequence of the test state
machine. TCK can be asynchronous with CLK.
TMS - Test Mode select (input)
Primary control signal for the state machine. Synchronous with TCK. A sequence of values on
TMS adjusts the current state of the TAP.
TDI - Test data input (input)
Serial input data to the boundary scan latches. Synchronous with TCK
TDO - Test data output (output)
Serial output data from the boundary scan latches. Synchronous with TCK
TRST - Test Reset (input)
Resets the test state machine. Can be asynchronous with TCK. Shall be grounded for end
application.
PCI Arbiter
AREQ*[3:0] - PCI bus request (Input)
When asserted, these active low inputs indicate that a PCI agent is requesting the bus.
AGNT*[3:0] - PCI bus grant (Output)
When asserted, these active low outputs indicate that a PCI agent is granted the PCI bus.
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