SAMA5D41_14 Datasheet, PDF (482/1776 Pages) ATMEL Corporation – Atmel | SMART ARM-based Embedded MPU

30.5 Multiplexed Signals
Table 30-2. Static Memory Controller (SMC) Multiplexed Signals
Multiplexed Signals Related Function
NWR0
NWE
Byte-write or Byte-select access, see Section 30.9.2.1 “Byte Write Access” and Section 30.9.2.2 “Byte
Select Access”
A0
NBS0
8-bit or 16-bit data bus, see Section 30.9.1 “Data Bus Width”
A22
NANDCLE NAND Flash Command Latch Enable
A21
NANDALE NAND Flash Address Latch Enable
NWR1
NBS1
Byte-write or Byte-select access, see Section 30.9.2.1 “Byte Write Access” and Section 30.9.2.2 “Byte
Select Access”
8-/16-bit data bus, see Section 30.9.1 “Data Bus Width”
A1
–
Byte-write or Byte-select access, see Section 30.9.2.1 “Byte Write Access” and Section 30.9.2.2 “Byte
Select Access”
30.6 Application Example
30.6.1 Hardware Interface
Figure 30-2. SMC Connections to Static Memory Devices
D0-D15
A0/NBS0
NWR0/NWE
NWR1/NBS1
A1
NCS0
NCS1
NCS2
NCS3
A2 - A23
Static Memory
Controller
128K x 8
D0 - D7
SRAM
D0 - D7
CS
NRD
OE
NWR0/NWE
WE
A0 - A16
A2 - A18
128K x 8
D8-D15
SRAM
D0-D7
CS
NRD
OE
NWR1/NBS1 _WE
A0 - A16 ^{A2 - A18}
482
SAMA5D4 Series [DATASHEET]
Atmel-11238A-ATARM-SAMA5D4-Datasheet_30-Sep-14