EP2S15 datasheet(36/238 Pages) ALTERA

36 / 238 page

2–28

Altera Corporation

Stratix II Device Handbook, Volume 1

May 2007

TriMatrix Memory

TriMatrix

Memory

TriMatrix memory consists of three types of RAM blocks: M512, M4K,

and M-RAM. Although these memory blocks are different, they can all

implement various types of memory with or without parity, including

true dual-port, simple dual-port, and single-port RAM, ROM, and FIFO

buffers. Table 2–3 shows the size and features of the different RAM

blocks.

Column IOE

vv v

Row IOE

vvvv

Table 2–2. Stratix II Device Routing Scheme (Part 2 of 2)

Source

Destination

Table 2–3. TriMatrix Memory Features (Part 1 of 2)

Memory Feature

M512 RAM Block

(32 × 18 Bits)

M4K RAM Block

(128 × 36 Bits)

M-RAM Block

(4K × 144 Bits)

Maximum performance

500 MHz

550 MHz

420 MHz

True dual-port memory

Simple dual-port memory

vvv

Single-port memory

vvv

Shift register

ROM

(1)

FIFO buffer

vvv

Pack mode

Byte enable

vvv

Address clock enable

Parity bits

vvv

Mixed clock mode

vvv

Memory initialization (.mif)

EP2S15 Datasheet(PDF) 36 Page - Altera Corporation

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