參數(shù)資料
型號: EP7211
廠商: Cirrus Logic, Inc.
英文描述: HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
中文描述: 高性能超低功耗系統(tǒng)與LCD控制器芯片
文件頁數(shù): 77/166頁
文件大?。?/td> 2623K
代理商: EP7211
EP7211
High-Performance Ultra-Low-Power System-on-Chip with LCD Controller
77
Functional Description
DS352PP3
JUL 2001
NOTE:
A system can only use one of the following peripheral interfaces at any given time: SSI2, codec, or
MCP.
3.21
Boundary Scan
IEEE 1149.1 compliant JTAG is provided with the EP7211. (It should be noted that a full system
reset, BNRES[0] =
0
, must be applied to the device initially.)
The INTEST function will not be supported for the EP7211.
Additional user-defined instructions exist, but these are not relevant to board-level testing. For
further information please refer to the
ARM DDI 0087E
ARM720T Datasheet
Section 8.
As there are additional scan-chains within the ARM720T processor, it is necessary to include a scan-
chain select function
shown as SCAN_N in
Table 3-18. Instructions Supported in JTAG
Mode
. To select a particular scan chain, this function must be input to the TAP controller, followed
by the 4-bit scan-chain identification code. The identification code for the boundary scan chain is
0011.
Note that it is only necessary to issue the SCAN_N instruction if the device is already in the JTAG
mode. The boundary scan chain is selected as the default on test-logic reset and any of the system
resets.
The contents of the device ID-register for the EP7211 are shown below:
This is equivalent to 0F0F0F0F Hex. Note this is the ID-code for the ARM720T processor.
Table 3-18. Instructions Supported in JTAG Mode
Instruction
Code
BYPASS
1111
IDCODE
1110
SAMPLE/PRELOAD
0011
EXTEST
0000
SCAN_N
0010
Version
Part number
Manufacturer ID
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
相關(guān)PDF資料
PDF描述
EP7211-CP-A HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7211-CV-A HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7212 HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CB-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CV-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
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