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EPM240T100A 数据表(PDF) 44 Page - Altera Corporation

部件名 EPM240T100A
功能描述  MAX II Device Family
Download  86 Pages
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制造商  ALTERA [Altera Corporation]
网页  http://www.altera.com
标志 ALTERA - Altera Corporation

EPM240T100A 数据表(HTML) 44 Page - Altera Corporation

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3–2
Chapter 3: JTAG and In-System Programmability
IEEE Std. 1149.1 (JTAG) Boundary-Scan Support
MAX II Device Handbook
© October 2008
Altera Corporation
w Unsupported JTAG instructions should not be issued to the MAX II device as this may
put the device into an unknown state, requiring a power cycle to recover device
operation.
The MAX II device instruction register length is 10 bits and the USERCODE register
length is 32 bits. Table 3–2 and Table 3–3 show the boundary-scan register length and
device IDCODE information for MAX II devices.
CLAMP
(1)
00 0000 1010
Places the 1-bit bypass register between the TDI and TDO pins,
which allows the boundary scan test data to pass synchronously
through selected devices to adjacent devices during normal device
operation, while holding I/O pins to a state defined by the data in the
boundary-scan register.
USER0
00 0000 1100
This instruction allows you to define the scan chain between TDI
and TDO in the MAX II logic array. This instruction is also used for
custom logic and JTAG interfaces.
USER1
00 0000 1110
This instruction allows you to define the scan chain between TDI
and TDO in the MAX II logic array. This instruction is also used for
custom logic and JTAG interfaces.
IEEE 1532
instructions
(2)
IEEE 1532 ISC instructions used when programming a MAX II device
via the JTAG port.
Notes to Table 3–1:
(1) HIGHZ, CLAMP, and EXTEST instructions do not disable weak pull-up resistors or bus hold features.
(2) These instructions are shown in the 1532 BSDL files, which will be posted on the Altera® website at www.altera.com when they are available.
Table 3–1. MAX II JTAG Instructions (Part 2 of 2)
JTAG Instruction
Instruction Code
Description
Table 3–2. MAX II Boundary-Scan Register Length
Device
Boundary-Scan Register Length
EPM240
240
EPM570
480
EPM1270
636
EPM2210
816
Table 3–3. 32-Bit MAX II Device IDCODE (Part 1 of 2)
Device
Binary IDCODE (32 Bits) (1)
HEX IDCODE
Version
(4 Bits)
Part Number
Manufacturer
Identity (11 Bits)
LSB
(1 Bit) (2)
EPM240
EPM240G
0000
0010 0000 1010 0001
000 0110 1110
1
0x020A10DD
EPM570
EPM570G
0000
0010 0000 1010 0010
000 0110 1110
1
0x020A20DD
EPM1270
EPM1270G
0000
0010 0000 1010 0011
000 0110 1110
1
0x020A30DD
EPM2210
EPM2210G
0000
0010 0000 1010 0100
000 0110 1110
1
0x020A40DD


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