AT91MEC01 Atmel, AT91MEC01 Datasheet - Page 13

• Manufacturer Part Number: AT91MEC01
• Description: AT91 MEMORY EXTENSION CARD
• Manufacturer: Atmel

Specifications of AT91MEC01

• Accessory Type: Memory Extension Card
• For Use With/related Products: AT91 ARM Thumb MCU Evaluation Board
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5.1
AT91MEC01 User Guide
AT91MEC01 Link
Description
The following table explains the links for the AT91MEC01.
Table 5-1. Link Descriptions
Note:
Link Name
E1
E2
E3
E4
E5
E6
E7
E8
E9
1. On certain variants of the AT91 series, the chip select signals 4 and 5 are called
CS4/A23 and CS5/A22 (active high); on others, they are called NCS4 and NCS5
(active low).
Position
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Description
The microcontroller cannot read the Ready/Busy signal from
Flash 1.
The microcontroller reads the Ready/Busy signal from
Flash 1 on pin MCKO.
NCS0 deselects Flash 0.
NCS0 selects Flash 0. E3 and E4 must be open.
NCS2 deselects Flash 0.
NCS2 selects Flash 0. E2 must be open.
NCS0 deselects Flash 1.
NCS0 selects Flash 1. E2 and E5 must be open.
NCS3 deselects Flash 1.
NCS3 selects Flash 1. E4 must be open.
NCS4
NCS4
CS4/A23
CS4/A23
NCS5
NCS5
CS5/A22
CS5/A22
(1)
(1)
(1)
(1)
deselects SRAM bank 0.
selects SRAM bank 0. E7 must be open.
deselects SRAM bank 1.
selects SRAM bank 1. E9 must be open.
(1)
(1)
(1)
(1)
Appendix A – Links
deselects SRAM bank 0.
selects SRAM bank 0. E6 must be open.
deselects SRAM bank 1.
selects SRAM bank 1. E8 must be open.
Section 5
5-1