EP3C16F256I7N Altera, EP3C16F256I7N Datasheet - Page 391

• Manufacturer Part Number: EP3C16F256I7N
• Description: Cyclone III
• Manufacturer: Altera

Figure 14–12. BYPASS Shift Data Register Waveforms
Altera Corporation-Preliminary
March 2007
EP3C5
EP3C10
EP3C16
EP3C25
EP3C40
EP3C55
EP3C80
Table 14–5. 32-Bit Cyclone III Device IDCODE
TAP_STATE
TMS
TDO
TCK
TDI
Device
SHIFT_IR
Instruction Code
Version (4
0000
0000
0000
0000
0000
0000
0000
Bits)
IDCODE Instruction Mode
The IDCODE instruction mode is used to identify the devices in an IEEE
Std. 1149.1 chain. When IDCODE is selected, the device identification
register is loaded with the 32-bit vendor-defined identification code. The
device ID register is connected between the TDI and TDO ports, and the
device IDCODE is shifted out.
Table 14–5
EXIT1_IR
UPDATE_IR
shows the IDCODE information for Cyclone III devices.
SELECT_DR_SCAN
Part Number (16 Bits)
0010 0000 1111 0001
0010 0000 1111 0001
0010 0000 1111 0010
0010 0000 1111 0011
0010 0000 1111 0100
0010 0000 1111 0101
0010 0000 1111 0110
CAPTURE_DR
Bit 1
IDCODE (32 Bits)
Bit 2
Bit 1
SHIFT_DR
Data shifted into TDI on
the rising edge of TCK is
shifted out of TDO on the
falling edge of the same
TCK pulse.
Bit 3
Bit 2
IEEE Std. 1149.1 BST Operation Control
Cyclone III Device Handbook, Volume 1
Identity (11 Bits)
(1)
000 0110 1110
000 0110 1110
000 0110 1110
000 0110 1110
000 0110 1110
000 0110 1110
000 0110 1110
Manufacturer
Bit 4
EXIT1_DR
LSB (1 Bit)
UPDATE_DR
1
1
1
1
1
1
1
14–17
(2)