Serial Configuration Devices (EPCS1, EPCS4, EPCS16 & EPCS64) Data Sheet
Serial
Configuration
Device Memory
Access
This section describes the serial configuration device’s memory array
organization and operation codes. Timing specifications for the memory
are provided in the
section.
1
Information on EPCS16 and EPCS64 devices will be available
when devices are available.
Memory Array Organization
provides details on the memory array organization in EPCS4
and EPCS1 devices.
Table 4–5. Memory Array Organization in Serial Configuration Devices
Details
Bytes (bits)
Number of sectors
Bytes (bits) per sector
Pages per sector
Total number of pages
Bytes per page
EPCS4
524,888 bytes (4 Mbits)
8
65,536 bytes (512 Kbits)
256
2,048
256 bytes
EPCS1
131, 072 bytes (1 Mbit)
4
32,768 bytes (256 Kbits)
128
512
256 bytes
and
show the address range for each sector in the EPCS4
and EPCS1 devices, respectively.
Table 4–6. Address Range for Sectors in EPCS4 Devices
Address Range (Byte Addresses in HEX)
Sector
Start
7
6
5
4
3
2
1
0
End
H'7FFFF
H'6FFFF
H'5FFFF
H'4FFFF
H'3FFFF
H'2FFFF
H'1FFFF
H'0FFFF
H'70000
H'60000
H'50000
H'40000
H'30000
H'20000
H'10000
H'00000
Altera Corporation
July 2004
Core Version a.b.c variable
4–9
Configuration Handbook, Volume 2
ALTERA [ ALTERA CORPORATION ]
