2–28
Chapter 2: MAX II Architecture
I/O Structure
Figure 2–23. MAX II I/O Banks for EPM1270 and EPM2210 (Note 1), (2)
I/O Bank 2
Also Supports
the 3.3-V PCI
I/O Standard
All I/O Banks Support
■ 3.3-V LVTTL/LVCMOS
■ 2.5-V LVTTL/LVCMOS
■ 1.8-V LVTTL/LVCMOS
■ 1.5-V LVCMOS
I/O Bank 1
I/O Bank 3
I/O Bank 4
Notes to Figure 2–23:
(1) Figure 2–23 is a top view of the silicon die.
(2) Figure 2–23 is a graphical representation only. Refer to the pin list and the Quartus II software for exact pin locations.
Each I/O bank has dedicated VCCIO pins that determine the voltage standard support
in that bank. A single device can support 1.5-V, 1.8-V, 2.5-V, and 3.3-V interfaces; each
individual bank can support a different standard. Each I/O bank can support
multiple standards with the same VCCIO for input and output pins. For example, when
V
CCIO is 3.3 V, Bank 3 can support LVTTL, LVCMOS, and 3.3-V PCI. VCCIO powers both
the input and output buffers in MAX II devices.
The JTAG pins for MAX II devices are dedicated pins that cannot be used as regular
I/O pins. The pins TMS, TDI, TDO, and TCKsupport all the I/O standards shown in
Table 2–4 on page 2–27 except for PCI. These pins reside in Bank 1 for all MAX II
devices and their I/O standard support is controlled by the VCCIO setting for Bank 1.
PCI Compliance
The MAX II EPM1270 and EPM2210 devices are compliant with PCI applications as
well as all 3.3-V electrical specifications in the PCI Local Bus Specification Revision 2.2.
These devices are also large enough to support PCI intellectual property (IP) cores.
Table 2–5 shows the MAX II device speed grades that meet the PCI timing
specifications.
MAX II Device Handbook
© October 2008 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
